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[wxWidgets.git] / src / common / datetime.cpp
diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp
index c0afcdaab298edfa8fdc11ff1674ecd7cf6b374d..765e3164192d7fc4adcdda191632be7c24efa5ea 100644 (file)
--- a/src/common/datetime.cpp
+++ b/src/common/datetime.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        wx/datetime.h
+// Name:        src/common/datetime.cpp
 // Purpose:     implementation of time/date related classes
 // Author:      Vadim Zeitlin
 // Modified by:
 // Purpose:     implementation of time/date related classes
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -13,7 +13,7 @@
 //               so long as the above copyright and this permission statement
 //               are retained in all copies.
 //
 //               so long as the above copyright and this permission statement
 //               are retained in all copies.
 //
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 /*
 ///////////////////////////////////////////////////////////////////////////////
 
 /*
@@ -52,10 +52,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "datetime.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -63,28 +59,58 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 
+#if !defined(wxUSE_DATETIME) || wxUSE_DATETIME
+
 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP
+    #ifdef __WXMSW__
+        #include "wx/msw/wrapwin.h"
+    #endif
     #include "wx/string.h"
     #include "wx/string.h"
-    #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/log.h"
+    #include "wx/intl.h"
+    #include "wx/stopwatch.h"           // for wxGetLocalTimeMillis()
+    #include "wx/module.h"
 #endif // WX_PRECOMP
 
 #include "wx/thread.h"
 #include "wx/tokenzr.h"
 #endif // WX_PRECOMP
 
 #include "wx/thread.h"
 #include "wx/tokenzr.h"
-#include "wx/module.h"
-
-#define wxDEFINE_TIME_CONSTANTS // before including datetime.h
 
 #include <ctype.h>
 
 
 #include <ctype.h>
 
+#ifdef __WINDOWS__
+    #include <winnls.h>
+    #ifndef __WXWINCE__
+        #include <locale.h>
+    #endif
+#endif
+
 #include "wx/datetime.h"
 #include "wx/datetime.h"
-#include "wx/timer.h"           // for wxGetLocalTimeMillis()
 
 
+const long wxDateTime::TIME_T_FACTOR = 1000l;
+
+#if wxUSE_EXTENDED_RTTI
+
+template<> void wxStringReadValue(const wxString &s , wxDateTime &data )
+{
+    data.ParseFormat(s,wxT("%Y-%m-%d %H:%M:%S")) ;
+}
+
+template<> void wxStringWriteValue(wxString &s , const wxDateTime &data )
+{
+    s = data.Format(wxT("%Y-%m-%d %H:%M:%S")) ;
+}
+
+wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter<wxDateTime> , wxFromStringConverter<wxDateTime>)
+
+#endif
+
+//
 // ----------------------------------------------------------------------------
 // conditional compilation
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 // conditional compilation
 // ----------------------------------------------------------------------------
 
-#if defined(HAVE_STRPTIME) && defined(__LINUX__)
+#if defined(HAVE_STRPTIME) && defined(__GLIBC__) && \
+        ((__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0))
     // glibc 2.0.7 strptime() is broken - the following snippet causes it to
     // crash (instead of just failing):
     //
     // glibc 2.0.7 strptime() is broken - the following snippet causes it to
     // crash (instead of just failing):
     //
@@ -95,16 +121,143 @@
     #undef HAVE_STRPTIME
 #endif // broken strptime()
 
     #undef HAVE_STRPTIME
 #endif // broken strptime()
 
-#ifndef WX_TIMEZONE
-    #if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
+#if defined(HAVE_STRPTIME) && defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS
+    // configure detects strptime as linkable because it's in the OS X
+    // System library but MSL headers don't declare it.
+
+//    char *strptime(const char *, const char *, struct tm *);
+    // However, we DON'T want to just provide it here because we would
+    // crash and/or overwrite data when strptime from OS X tries
+    // to fill in MW's struct tm which is two fields shorter (no TZ stuff)
+    // So for now let's just say we don't have strptime
+    #undef HAVE_STRPTIME
+#endif
+
+#if defined(__MWERKS__) && wxUSE_UNICODE
+    #include <wtime.h>
+#endif
+
+// define a special symbol for VC8 instead of writing tests for 1400 repeatedly
+#ifdef __VISUALC__
+    #if __VISUALC__ >= 1400
+        #define __VISUALC8__
+    #endif
+#endif
+
+#if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM)
+    #if defined(__WXPALMOS__)
+        #define WX_GMTOFF_IN_TM
+    #elif defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
         #define WX_TIMEZONE _timezone
     #elif defined(__MWERKS__)
         long wxmw_timezone = 28800;
         #define WX_TIMEZONE _timezone
     #elif defined(__MWERKS__)
         long wxmw_timezone = 28800;
-        #define WX_TIMEZONE wxmw_timezone;
+        #define WX_TIMEZONE wxmw_timezone
+    #elif defined(__DJGPP__) || defined(__WINE__)
+        #include <sys/timeb.h>
+        #include <values.h>
+        static long wxGetTimeZone()
+        {
+            static long timezone = MAXLONG; // invalid timezone
+            if (timezone == MAXLONG)
+            {
+                struct timeb tb;
+                ftime(&tb);
+                timezone = tb.timezone;
+            }
+            return timezone;
+        }
+        #define WX_TIMEZONE wxGetTimeZone()
+    #elif defined(__DARWIN__)
+        #define WX_GMTOFF_IN_TM
+    #elif defined(__WXWINCE__) && defined(__VISUALC8__)
+        #define WX_TIMEZONE _timezone
     #else // unknown platform - try timezone
         #define WX_TIMEZONE timezone
     #endif
     #else // unknown platform - try timezone
         #define WX_TIMEZONE timezone
     #endif
-#endif // !WX_TIMEZONE
+#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM
+
+// everyone has strftime except Win CE unless VC8 is used
+#if !defined(__WXWINCE__) || defined(__VISUALC8__)
+    #define HAVE_STRFTIME
+#endif
+
+// NB: VC8 safe time functions could/should be used for wxMSW as well probably
+#if defined(__WXWINCE__) && defined(__VISUALC8__)
+
+struct tm *wxLocaltime_r(const time_t *t, struct tm* tm)
+{
+    __time64_t t64 = *t;
+    return _localtime64_s(tm, &t64) == 0 ? tm : NULL;
+}
+
+struct tm *wxGmtime_r(const time_t* t, struct tm* tm)
+{
+    __time64_t t64 = *t;
+    return _gmtime64_s(tm, &t64) == 0 ? tm : NULL;
+}
+
+#else // !wxWinCE with VC8
+
+#if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__)
+static wxMutex timeLock;
+#endif
+
+#ifndef HAVE_LOCALTIME_R
+struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp)
+{
+#if wxUSE_THREADS && !defined(__WINDOWS__)
+  // No need to waste time with a mutex on windows since it's using
+  // thread local storage for localtime anyway.
+  wxMutexLocker locker(timeLock);
+#endif
+
+  // Borland CRT crashes when passed 0 ticks for some reason, see SF bug 1704438
+#ifdef __BORLANDC__
+  if ( !*ticks )
+      return NULL;
+#endif
+
+  const tm * const t = localtime(ticks);
+  if ( !t )
+      return NULL;
+
+  memcpy(temp, t, sizeof(struct tm));
+  return temp;
+}
+#endif // !HAVE_LOCALTIME_R
+
+#ifndef HAVE_GMTIME_R
+struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp)
+{
+#if wxUSE_THREADS && !defined(__WINDOWS__)
+  // No need to waste time with a mutex on windows since it's
+  // using thread local storage for gmtime anyway.
+  wxMutexLocker locker(timeLock);
+#endif
+
+#ifdef __BORLANDC__
+  if ( !*ticks )
+      return NULL;
+#endif
+
+  const tm * const t = gmtime(ticks);
+  if ( !t )
+      return NULL;
+
+  memcpy(temp, gmtime(ticks), sizeof(struct tm));
+  return temp;
+}
+#endif // !HAVE_GMTIME_R
+
+#endif // wxWinCE with VC8/other platforms
+
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
+
+// debugging helper: just a convenient replacement of wxCHECK()
+#define wxDATETIME_CHECK(expr, msg) \
+    wxCHECK2_MSG(expr, *this = wxInvalidDateTime; return *this, msg)
 
 // ----------------------------------------------------------------------------
 // private classes
 
 // ----------------------------------------------------------------------------
 // private classes
@@ -117,13 +270,13 @@ public:
     {
         wxDateTimeHolidayAuthority::AddAuthority(new wxDateTimeWorkDays);
 
     {
         wxDateTimeHolidayAuthority::AddAuthority(new wxDateTimeWorkDays);
 
-        return TRUE;
+        return true;
     }
 
     virtual void OnExit()
     {
         wxDateTimeHolidayAuthority::ClearAllAuthorities();
     }
 
     virtual void OnExit()
     {
         wxDateTimeHolidayAuthority::ClearAllAuthorities();
-        wxDateTimeHolidayAuthority::ms_authorities.Clear();
+        wxDateTimeHolidayAuthority::ms_authorities.clear();
     }
 
 private:
     }
 
 private:
@@ -139,21 +292,30 @@ IMPLEMENT_DYNAMIC_CLASS(wxDateTimeHolidaysModule, wxModule)
 // some trivial ones
 static const int MONTHS_IN_YEAR = 12;
 
 // some trivial ones
 static const int MONTHS_IN_YEAR = 12;
 
-static const int SECONDS_IN_MINUTE = 60;
+static const int SEC_PER_MIN = 60;
+
+static const int MIN_PER_HOUR = 60;
+
+static const int HOURS_PER_DAY = 24;
 
 static const long SECONDS_PER_DAY = 86400l;
 
 
 static const long SECONDS_PER_DAY = 86400l;
 
+static const int DAYS_PER_WEEK = 7;
+
 static const long MILLISECONDS_PER_DAY = 86400000l;
 
 // this is the integral part of JDN of the midnight of Jan 1, 1970
 // (i.e. JDN(Jan 1, 1970) = 2440587.5)
 static const long EPOCH_JDN = 2440587l;
 
 static const long MILLISECONDS_PER_DAY = 86400000l;
 
 // this is the integral part of JDN of the midnight of Jan 1, 1970
 // (i.e. JDN(Jan 1, 1970) = 2440587.5)
 static const long EPOCH_JDN = 2440587l;
 
+// used only in asserts
+#ifdef __WXDEBUG__
 // the date of JDN -0.5 (as we don't work with fractional parts, this is the
 // reference date for us) is Nov 24, 4714BC
 static const int JDN_0_YEAR = -4713;
 static const int JDN_0_MONTH = wxDateTime::Nov;
 static const int JDN_0_DAY = 24;
 // the date of JDN -0.5 (as we don't work with fractional parts, this is the
 // reference date for us) is Nov 24, 4714BC
 static const int JDN_0_YEAR = -4713;
 static const int JDN_0_MONTH = wxDateTime::Nov;
 static const int JDN_0_DAY = 24;
+#endif // __WXDEBUG__
 
 // the constants used for JDN calculations
 static const long JDN_OFFSET         = 32046l;
 
 // the constants used for JDN calculations
 static const long JDN_OFFSET         = 32046l;
@@ -173,22 +335,15 @@ static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] =
 // global data
 // ----------------------------------------------------------------------------
 
 // global data
 // ----------------------------------------------------------------------------
 
-static wxDateTime gs_dtDefault;
+const wxChar * wxDefaultDateTimeFormat = wxT("%c");
+const wxChar * wxDefaultTimeSpanFormat = wxT("%H:%M:%S");
 
 
-wxDateTime& wxDefaultDateTime = gs_dtDefault;
+// in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to
+// indicate an invalid wxDateTime object
+const wxDateTime wxDefaultDateTime;
 
 wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown;
 
 
 wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown;
 
-// ----------------------------------------------------------------------------
-// private globals
-// ----------------------------------------------------------------------------
-
-// a critical section is needed to protect GetTimeZone() static
-// variable in MT case
-#if wxUSE_THREADS
-    static wxCriticalSection gs_critsectTimezone;
-#endif // wxUSE_THREADS
-
 // ----------------------------------------------------------------------------
 // private functions
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // private functions
 // ----------------------------------------------------------------------------
@@ -220,25 +375,36 @@ wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month)
     return daysInMonth[wxDateTime::IsLeapYear(year)][month];
 }
 
     return daysInMonth[wxDateTime::IsLeapYear(year)][month];
 }
 
-// ensure that the timezone variable is set by calling localtime
+// returns the time zone in the C sense, i.e. the difference UTC - local
+// (in seconds)
 static int GetTimeZone()
 {
 static int GetTimeZone()
 {
-    // set to TRUE when the timezone is set
-    static bool s_timezoneSet = FALSE;
-
-    wxCRIT_SECT_LOCKER(lock, gs_critsectTimezone);
+    // set to true when the timezone is set
+    static bool s_timezoneSet = false;
+    static long gmtoffset = LONG_MAX; // invalid timezone
 
 
+    // ensure that the timezone variable is set by calling wxLocaltime_r
     if ( !s_timezoneSet )
     {
     if ( !s_timezoneSet )
     {
-        // just call localtime() instead of figuring out whether this system
-        // supports tzset(), _tzset() or something else
-        time_t t;
-        (void)localtime(&t);
+        // just call wxLocaltime_r() instead of figuring out whether this
+        // system supports tzset(), _tzset() or something else
+        time_t t = 0;
+        struct tm tm;
+
+        wxLocaltime_r(&t, &tm);
+        s_timezoneSet = true;
 
 
-        s_timezoneSet = TRUE;
+#ifdef WX_GMTOFF_IN_TM
+        // note that GMT offset is the opposite of time zone and so to return
+        // consistent results in both WX_GMTOFF_IN_TM and !WX_GMTOFF_IN_TM
+        // cases we have to negate it
+        gmtoffset = -tm.tm_gmtoff;
+#else // !WX_GMTOFF_IN_TM
+        gmtoffset = WX_TIMEZONE;
+#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM
     }
 
     }
 
-    return (int)WX_TIMEZONE;
+    return (int)gmtoffset;
 }
 
 // return the integral part of the JDN for the midnight of the given date (to
 }
 
 // return the integral part of the JDN for the midnight of the given date (to
@@ -281,28 +447,73 @@ static long GetTruncatedJDN(wxDateTime::wxDateTime_t day,
             - JDN_OFFSET;
 }
 
             - JDN_OFFSET;
 }
 
-// this function is a wrapper around strftime(3)
+#ifdef HAVE_STRFTIME
+
+// this function is a wrapper around strftime(3) adding error checking
 static wxString CallStrftime(const wxChar *format, const tm* tm)
 {
     wxChar buf[4096];
 static wxString CallStrftime(const wxChar *format, const tm* tm)
 {
     wxChar buf[4096];
+    // Create temp wxString here to work around mingw/cygwin bug 1046059
+    // http://sourceforge.net/tracker/?func=detail&atid=102435&aid=1046059&group_id=2435
+    wxString s;
+
     if ( !wxStrftime(buf, WXSIZEOF(buf), format, tm) )
     {
         // buffer is too small?
         wxFAIL_MSG(_T("strftime() failed"));
     }
 
     if ( !wxStrftime(buf, WXSIZEOF(buf), format, tm) )
     {
         // buffer is too small?
         wxFAIL_MSG(_T("strftime() failed"));
     }
 
-    return wxString(buf);
+    s = buf;
+    return s;
 }
 
 }
 
+#endif // HAVE_STRFTIME
+
+#ifdef HAVE_STRPTIME
+
+#if wxUSE_UNIX && !defined(HAVE_STRPTIME_DECL)
+    // configure detected that we had strptime() but not its declaration,
+    // provide it ourselves
+    extern "C" char *strptime(const char *, const char *, struct tm *);
+#endif
+
+// Unicode-friendly strptime() wrapper
+static const wxChar *
+CallStrptime(const wxChar *input, const char *fmt, tm *tm)
+{
+    // the problem here is that strptime() returns pointer into the string we
+    // passed to it while we're really interested in the pointer into the
+    // original, Unicode, string so we try to transform the pointer back
+#if wxUSE_UNICODE
+    wxCharBuffer inputMB(wxConvertWX2MB(input));
+#else // ASCII
+    const char * const inputMB = input;
+#endif // Unicode/Ascii
+
+    const char *result = strptime(inputMB, fmt, tm);
+    if ( !result )
+        return NULL;
+
+#if wxUSE_UNICODE
+    // FIXME: this is wrong in presence of surrogates &c
+    return input + (result - inputMB.data());
+#else // ASCII
+    return result;
+#endif // Unicode/Ascii
+}
+
+#endif // HAVE_STRPTIME
+
 // if year and/or month have invalid values, replace them with the current ones
 static void ReplaceDefaultYearMonthWithCurrent(int *year,
                                                wxDateTime::Month *month)
 {
     struct tm *tmNow = NULL;
 // if year and/or month have invalid values, replace them with the current ones
 static void ReplaceDefaultYearMonthWithCurrent(int *year,
                                                wxDateTime::Month *month)
 {
     struct tm *tmNow = NULL;
+    struct tm tmstruct;
 
     if ( *year == wxDateTime::Inv_Year )
     {
 
     if ( *year == wxDateTime::Inv_Year )
     {
-        tmNow = wxDateTime::GetTmNow();
+        tmNow = wxDateTime::GetTmNow(&tmstruct);
 
         *year = 1900 + tmNow->tm_year;
     }
 
         *year = 1900 + tmNow->tm_year;
     }
@@ -310,7 +521,7 @@ static void ReplaceDefaultYearMonthWithCurrent(int *year,
     if ( *month == wxDateTime::Inv_Month )
     {
         if ( !tmNow )
     if ( *month == wxDateTime::Inv_Month )
     {
         if ( !tmNow )
-            tmNow = wxDateTime::GetTmNow();
+            tmNow = wxDateTime::GetTmNow(&tmstruct);
 
         *month = (wxDateTime::Month)tmNow->tm_mon;
     }
 
         *month = (wxDateTime::Month)tmNow->tm_mon;
     }
@@ -391,6 +602,13 @@ static wxDateTime::WeekDay GetWeekDayFromName(const wxString& name, int flags)
     return wd;
 }
 
     return wd;
 }
 
+/* static */
+struct tm *wxDateTime::GetTmNow(struct tm *tmstruct)
+{
+    time_t t = GetTimeNow();
+    return wxLocaltime_r(&t, tmstruct);
+}
+
 // scans all digits (but no more than len) and returns the resulting number
 static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number)
 {
 // scans all digits (but no more than len) and returns the resulting number
 static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number)
 {
@@ -404,7 +622,7 @@ static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number)
             break;
     }
 
             break;
     }
 
-    return !!s && s.ToULong(number);
+    return !s.empty() && s.ToULong(number);
 }
 
 // scans all alphabetic characters and returns the resulting string
 }
 
 // scans all alphabetic characters and returns the resulting string
@@ -440,14 +658,14 @@ wxDateTime::Tm::Tm(const struct tm& tm, const TimeZone& tz)
               : m_tz(tz)
 {
     msec = 0;
               : m_tz(tz)
 {
     msec = 0;
-    sec = tm.tm_sec;
-    min = tm.tm_min;
-    hour = tm.tm_hour;
-    mday = tm.tm_mday;
+    sec = (wxDateTime::wxDateTime_t)tm.tm_sec;
+    min = (wxDateTime::wxDateTime_t)tm.tm_min;
+    hour = (wxDateTime::wxDateTime_t)tm.tm_hour;
+    mday = (wxDateTime::wxDateTime_t)tm.tm_mday;
     mon = (wxDateTime::Month)tm.tm_mon;
     year = 1900 + tm.tm_year;
     mon = (wxDateTime::Month)tm.tm_mon;
     year = 1900 + tm.tm_year;
-    wday = tm.tm_wday;
-    yday = tm.tm_yday;
+    wday = (wxDateTime::wxDateTime_t)tm.tm_wday;
+    yday = (wxDateTime::wxDateTime_t)tm.tm_yday;
 }
 
 bool wxDateTime::Tm::IsValid() const
 }
 
 bool wxDateTime::Tm::IsValid() const
@@ -463,7 +681,7 @@ void wxDateTime::Tm::ComputeWeekDay()
     // compute the week day from day/month/year: we use the dumbest algorithm
     // possible: just compute our JDN and then use the (simple to derive)
     // formula: weekday = (JDN + 1.5) % 7
     // compute the week day from day/month/year: we use the dumbest algorithm
     // possible: just compute our JDN and then use the (simple to derive)
     // formula: weekday = (JDN + 1.5) % 7
-    wday = (wxDateTime::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7;
+    wday = (wxDateTime::wxDateTime_t)((GetTruncatedJDN(mday, mon, year) + 2) % 7);
 }
 
 void wxDateTime::Tm::AddMonths(int monDiff)
 }
 
 void wxDateTime::Tm::AddMonths(int monDiff)
@@ -501,7 +719,7 @@ void wxDateTime::Tm::AddDays(int dayDiff)
         dayDiff += GetNumOfDaysInMonth(year, mon);
     }
 
         dayDiff += GetNumOfDaysInMonth(year, mon);
     }
 
-    mday += dayDiff;
+    mday = (wxDateTime::wxDateTime_t)( mday + dayDiff );
     while ( mday > GetNumOfDaysInMonth(year, mon) )
     {
         mday -= GetNumOfDaysInMonth(year, mon);
     while ( mday > GetNumOfDaysInMonth(year, mon) )
     {
         mday -= GetNumOfDaysInMonth(year, mon);
@@ -555,12 +773,13 @@ wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz)
         case wxDateTime::GMT10:
         case wxDateTime::GMT11:
         case wxDateTime::GMT12:
         case wxDateTime::GMT10:
         case wxDateTime::GMT11:
         case wxDateTime::GMT12:
+        case wxDateTime::GMT13:
             m_offset = 3600*(tz - wxDateTime::GMT0);
             break;
 
         case wxDateTime::A_CST:
             // Central Standard Time in use in Australia = UTC + 9.5
             m_offset = 3600*(tz - wxDateTime::GMT0);
             break;
 
         case wxDateTime::A_CST:
             // Central Standard Time in use in Australia = UTC + 9.5
-            m_offset = 60l*(9*60 + 30);
+            m_offset = 60l*(9*MIN_PER_HOUR + MIN_PER_HOUR/2);
             break;
 
         default:
             break;
 
         default:
@@ -595,7 +814,7 @@ bool wxDateTime::IsLeapYear(int year, wxDateTime::Calendar cal)
     {
         wxFAIL_MSG(_T("unknown calendar"));
 
     {
         wxFAIL_MSG(_T("unknown calendar"));
 
-        return FALSE;
+        return false;
     }
 }
 
     }
 }
 
@@ -704,8 +923,8 @@ wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month,
 wxString wxDateTime::GetMonthName(wxDateTime::Month month,
                                   wxDateTime::NameFlags flags)
 {
 wxString wxDateTime::GetMonthName(wxDateTime::Month month,
                                   wxDateTime::NameFlags flags)
 {
-    wxCHECK_MSG( month != Inv_Month, _T(""), _T("invalid month") );
-
+    wxCHECK_MSG( month != Inv_Month, wxEmptyString, _T("invalid month") );
+#ifdef HAVE_STRFTIME
     // notice that we must set all the fields to avoid confusing libc (GNU one
     // gets confused to a crash if we don't do this)
     tm tm;
     // notice that we must set all the fields to avoid confusing libc (GNU one
     // gets confused to a crash if we don't do this)
     tm tm;
@@ -713,18 +932,63 @@ wxString wxDateTime::GetMonthName(wxDateTime::Month month,
     tm.tm_mon = month;
 
     return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm);
     tm.tm_mon = month;
 
     return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm);
+#else // !HAVE_STRFTIME
+    wxString ret;
+    switch(month)
+    {
+        case Jan:
+            ret = (flags == Name_Abbr ? wxT("Jan"): wxT("January"));
+            break;
+        case Feb:
+            ret = (flags == Name_Abbr ? wxT("Feb"): wxT("Febuary"));
+            break;
+        case Mar:
+            ret = (flags == Name_Abbr ? wxT("Mar"): wxT("March"));
+            break;
+        case Apr:
+            ret = (flags == Name_Abbr ? wxT("Apr"): wxT("April"));
+            break;
+        case May:
+            ret = (flags == Name_Abbr ? wxT("May"): wxT("May"));
+            break;
+        case Jun:
+            ret = (flags == Name_Abbr ? wxT("Jun"): wxT("June"));
+            break;
+        case Jul:
+            ret = (flags == Name_Abbr ? wxT("Jul"): wxT("July"));
+            break;
+        case Aug:
+            ret = (flags == Name_Abbr ? wxT("Aug"): wxT("August"));
+            break;
+        case Sep:
+            ret = (flags == Name_Abbr ? wxT("Sep"): wxT("September"));
+            break;
+        case Oct:
+            ret = (flags == Name_Abbr ? wxT("Oct"): wxT("October"));
+            break;
+        case Nov:
+            ret = (flags == Name_Abbr ? wxT("Nov"): wxT("November"));
+            break;
+        case Dec:
+            ret = (flags == Name_Abbr ? wxT("Dec"): wxT("December"));
+            break;
+    }
+    return ret;
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
 }
 
 /* static */
 wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday,
                                     wxDateTime::NameFlags flags)
 {
 }
 
 /* static */
 wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday,
                                     wxDateTime::NameFlags flags)
 {
-    wxCHECK_MSG( wday != Inv_WeekDay, _T(""), _T("invalid weekday") );
-
-    // take some arbitrary Sunday
+    wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, _T("invalid weekday") );
+#ifdef HAVE_STRFTIME
+    // take some arbitrary Sunday (but notice that the day should be such that
+    // after adding wday to it below we still have a valid date, e.g. don't
+    // take 28 here!)
     tm tm;
     InitTm(tm);
     tm tm;
     InitTm(tm);
-    tm.tm_mday = 28;
+    tm.tm_mday = 21;
     tm.tm_mon = Nov;
     tm.tm_year = 99;
 
     tm.tm_mon = Nov;
     tm.tm_year = 99;
 
@@ -736,6 +1000,34 @@ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday,
 
     // ... and call strftime()
     return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm);
 
     // ... and call strftime()
     return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm);
+#else // !HAVE_STRFTIME
+    wxString ret;
+    switch(wday)
+    {
+        case Sun:
+            ret = (flags == Name_Abbr ? wxT("Sun") : wxT("Sunday"));
+            break;
+        case Mon:
+            ret = (flags == Name_Abbr ? wxT("Mon") : wxT("Monday"));
+            break;
+        case Tue:
+            ret = (flags == Name_Abbr ? wxT("Tue") : wxT("Tuesday"));
+            break;
+        case Wed:
+            ret = (flags == Name_Abbr ? wxT("Wed") : wxT("Wednesday"));
+            break;
+        case Thu:
+            ret = (flags == Name_Abbr ? wxT("Thu") : wxT("Thursday"));
+            break;
+        case Fri:
+            ret = (flags == Name_Abbr ? wxT("Fri") : wxT("Friday"));
+            break;
+        case Sat:
+            ret = (flags == Name_Abbr ? wxT("Sat") : wxT("Saturday"));
+            break;
+    }
+    return ret;
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
 }
 
 /* static */
 }
 
 /* static */
@@ -743,14 +1035,29 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm)
 {
     tm tm;
     InitTm(tm);
 {
     tm tm;
     InitTm(tm);
+    wxChar buffer[64];
+    // @Note: Do not call 'CallStrftime' here! CallStrftime checks the return code
+    // and causes an assertion failed if the buffer is to small (which is good) - OR -
+    // if strftime does not return anything because the format string is invalid - OR -
+    // if there are no 'am' / 'pm' tokens defined for the current locale (which is not good).
+    // wxDateTime::ParseTime will try several different formats to parse the time.
+    // As a result, GetAmPmStrings might get called, even if the current locale
+    // does not define any 'am' / 'pm' tokens. In this case, wxStrftime would
+    // assert, even though it is a perfectly legal use.
     if ( am )
     {
     if ( am )
     {
-        *am = CallStrftime(_T("%p"), &tm);
+        if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0)
+            *am = wxString(buffer);
+        else
+            *am = wxString();
     }
     if ( pm )
     {
         tm.tm_hour = 13;
     }
     if ( pm )
     {
         tm.tm_hour = 13;
-        *pm = CallStrftime(_T("%p"), &tm);
+        if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0)
+            *pm = wxString(buffer);
+        else
+            *pm = wxString();
     }
 }
 
     }
 }
 
@@ -763,12 +1070,13 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm)
 wxDateTime::Country wxDateTime::GetCountry()
 {
     // TODO use LOCALE_ICOUNTRY setting under Win32
 wxDateTime::Country wxDateTime::GetCountry()
 {
     // TODO use LOCALE_ICOUNTRY setting under Win32
-
+#ifndef __WXWINCE__
     if ( ms_country == Country_Unknown )
     {
         // try to guess from the time zone name
         time_t t = time(NULL);
     if ( ms_country == Country_Unknown )
     {
         // try to guess from the time zone name
         time_t t = time(NULL);
-        struct tm *tm = localtime(&t);
+        struct tm tmstruct;
+        struct tm *tm = wxLocaltime_r(&t, &tmstruct);
 
         wxString tz = CallStrftime(_T("%Z"), tm);
         if ( tz == _T("WET") || tz == _T("WEST") )
 
         wxString tz = CallStrftime(_T("%Z"), tm);
         if ( tz == _T("WET") || tz == _T("WEST") )
@@ -797,6 +1105,9 @@ wxDateTime::Country wxDateTime::GetCountry()
             ms_country = USA;
         }
     }
             ms_country = USA;
         }
     }
+#else // __WXWINCE__
+     ms_country = USA;
+#endif // !__WXWINCE__/__WXWINCE__
 
     return ms_country;
 }
 
     return ms_country;
 }
@@ -889,7 +1200,7 @@ wxDateTime wxDateTime::GetBeginDST(int year, Country country)
         dt += wxTimeSpan::Hours(1);
 
         // disable DST tests because it could result in an infinite recursion!
         dt += wxTimeSpan::Hours(1);
 
         // disable DST tests because it could result in an infinite recursion!
-        dt.MakeGMT(TRUE);
+        dt.MakeGMT(true);
     }
     else switch ( country )
     {
     }
     else switch ( country )
     {
@@ -990,7 +1301,7 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country)
         dt += wxTimeSpan::Hours(1);
 
         // disable DST tests because it could result in an infinite recursion!
         dt += wxTimeSpan::Hours(1);
 
         // disable DST tests because it could result in an infinite recursion!
-        dt.MakeGMT(TRUE);
+        dt.MakeGMT(true);
     }
     else switch ( country )
     {
     }
     else switch ( country )
     {
@@ -1046,8 +1357,6 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country)
 // the values in the tm structure contain the local time
 wxDateTime& wxDateTime::Set(const struct tm& tm)
 {
 // the values in the tm structure contain the local time
 wxDateTime& wxDateTime::Set(const struct tm& tm)
 {
-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
-
     struct tm tm2(tm);
     time_t timet = mktime(&tm2);
 
     struct tm tm2(tm);
     time_t timet = mktime(&tm2);
 
@@ -1057,21 +1366,18 @@ wxDateTime& wxDateTime::Set(const struct tm& tm)
         // less than timezone - try to make it work for this case
         if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 )
         {
         // less than timezone - try to make it work for this case
         if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 )
         {
-            // add timezone to make sure that date is in range
-            tm2.tm_sec -= GetTimeZone();
-
-            timet = mktime(&tm2);
-            if ( timet != (time_t)-1 )
-            {
-                timet += GetTimeZone();
-
-                return Set(timet);
-            }
+            return Set((time_t)(
+                       GetTimeZone() +
+                       tm2.tm_hour * MIN_PER_HOUR * SEC_PER_MIN +
+                       tm2.tm_min * SEC_PER_MIN +
+                       tm2.tm_sec));
         }
 
         wxFAIL_MSG( _T("mktime() failed") );
 
         }
 
         wxFAIL_MSG( _T("mktime() failed") );
 
-        return wxInvalidDateTime;
+        *this = wxInvalidDateTime;
+
+        return *this;
     }
     else
     {
     }
     else
     {
@@ -1084,25 +1390,35 @@ wxDateTime& wxDateTime::Set(wxDateTime_t hour,
                             wxDateTime_t second,
                             wxDateTime_t millisec)
 {
                             wxDateTime_t second,
                             wxDateTime_t millisec)
 {
-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
-
     // we allow seconds to be 61 to account for the leap seconds, even if we
     // don't use them really
     // we allow seconds to be 61 to account for the leap seconds, even if we
     // don't use them really
-    wxCHECK_MSG( hour < 24 && second < 62 && minute < 60 && millisec < 1000,
-                 wxInvalidDateTime,
-                 _T("Invalid time in wxDateTime::Set()") );
+    wxDATETIME_CHECK( hour < 24 &&
+                      second < 62 &&
+                      minute < 60 &&
+                      millisec < 1000,
+                      _T("Invalid time in wxDateTime::Set()") );
 
     // get the current date from system
 
     // get the current date from system
-    struct tm *tm = GetTmNow();
+    struct tm tmstruct;
+    struct tm *tm = GetTmNow(&tmstruct);
+
+    wxDATETIME_CHECK( tm, _T("wxLocaltime_r() failed") );
 
 
-    wxCHECK_MSG( tm, wxInvalidDateTime, _T("localtime() failed") );
+    // make a copy so it isn't clobbered by the call to mktime() below
+    struct tm tm1(*tm);
 
     // adjust the time
 
     // adjust the time
-    tm->tm_hour = hour;
-    tm->tm_min = minute;
-    tm->tm_sec = second;
+    tm1.tm_hour = hour;
+    tm1.tm_min = minute;
+    tm1.tm_sec = second;
 
 
-    (void)Set(*tm);
+    // and the DST in case it changes on this date
+    struct tm tm2(tm1);
+    mktime(&tm2);
+    if ( tm2.tm_isdst != tm1.tm_isdst )
+        tm1.tm_isdst = tm2.tm_isdst;
+
+    (void)Set(tm1);
 
     // and finally adjust milliseconds
     return SetMillisecond(millisec);
 
     // and finally adjust milliseconds
     return SetMillisecond(millisec);
@@ -1116,17 +1432,16 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day,
                             wxDateTime_t second,
                             wxDateTime_t millisec)
 {
                             wxDateTime_t second,
                             wxDateTime_t millisec)
 {
-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
-
-    wxCHECK_MSG( hour < 24 && second < 62 && minute < 60 && millisec < 1000,
-                 wxInvalidDateTime,
-                 _T("Invalid time in wxDateTime::Set()") );
+    wxDATETIME_CHECK( hour < 24 &&
+                      second < 62 &&
+                      minute < 60 &&
+                      millisec < 1000,
+                      _T("Invalid time in wxDateTime::Set()") );
 
     ReplaceDefaultYearMonthWithCurrent(&year, &month);
 
 
     ReplaceDefaultYearMonthWithCurrent(&year, &month);
 
-    wxCHECK_MSG( (0 < day) && (day <= GetNumberOfDays(month, year)),
-                 wxInvalidDateTime,
-                 _T("Invalid date in wxDateTime::Set()") );
+    wxDATETIME_CHECK( (0 < day) && (day <= GetNumberOfDays(month, year)),
+                      _T("Invalid date in wxDateTime::Set()") );
 
     // the range of time_t type (inclusive)
     static const int yearMinInRange = 1970;
 
     // the range of time_t type (inclusive)
     static const int yearMinInRange = 1970;
@@ -1150,7 +1465,10 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day,
         (void)Set(tm);
 
         // and finally adjust milliseconds
         (void)Set(tm);
 
         // and finally adjust milliseconds
-        return SetMillisecond(millisec);
+        if (IsValid())
+            SetMillisecond(millisec);
+
+        return *this;
     }
     else
     {
     }
     else
     {
@@ -1175,9 +1493,9 @@ wxDateTime& wxDateTime::Set(double jdn)
     // EPOCH_JDN + 0.5
     jdn -= EPOCH_JDN + 0.5;
 
     // EPOCH_JDN + 0.5
     jdn -= EPOCH_JDN + 0.5;
 
-    jdn *= MILLISECONDS_PER_DAY;
+    m_time.Assign(jdn*MILLISECONDS_PER_DAY);
 
 
-    m_time.Assign(jdn);
+    // JDNs always are in UTC, so we don't need any adjustments for time zone
 
     return *this;
 }
 
     return *this;
 }
@@ -1199,6 +1517,94 @@ wxDateTime& wxDateTime::ResetTime()
     return *this;
 }
 
     return *this;
 }
 
+wxDateTime wxDateTime::GetDateOnly() const
+{
+    Tm tm = GetTm();
+    tm.msec =
+    tm.sec =
+    tm.min =
+    tm.hour = 0;
+    return wxDateTime(tm);
+}
+
+// ----------------------------------------------------------------------------
+// DOS Date and Time Format functions
+// ----------------------------------------------------------------------------
+// the dos date and time value is an unsigned 32 bit value in the format:
+// YYYYYYYMMMMDDDDDhhhhhmmmmmmsssss
+//
+// Y = year offset from 1980 (0-127)
+// M = month (1-12)
+// D = day of month (1-31)
+// h = hour (0-23)
+// m = minute (0-59)
+// s = bisecond (0-29) each bisecond indicates two seconds
+// ----------------------------------------------------------------------------
+
+wxDateTime& wxDateTime::SetFromDOS(unsigned long ddt)
+{
+    struct tm tm;
+    InitTm(tm);
+
+    long year = ddt & 0xFE000000;
+    year >>= 25;
+    year += 80;
+    tm.tm_year = year;
+
+    long month = ddt & 0x1E00000;
+    month >>= 21;
+    month -= 1;
+    tm.tm_mon = month;
+
+    long day = ddt & 0x1F0000;
+    day >>= 16;
+    tm.tm_mday = day;
+
+    long hour = ddt & 0xF800;
+    hour >>= 11;
+    tm.tm_hour = hour;
+
+    long minute = ddt & 0x7E0;
+    minute >>= 5;
+    tm.tm_min = minute;
+
+    long second = ddt & 0x1F;
+    tm.tm_sec = second * 2;
+
+    return Set(mktime(&tm));
+}
+
+unsigned long wxDateTime::GetAsDOS() const
+{
+    unsigned long ddt;
+    time_t ticks = GetTicks();
+    struct tm tmstruct;
+    struct tm *tm = wxLocaltime_r(&ticks, &tmstruct);
+
+    long year = tm->tm_year;
+    year -= 80;
+    year <<= 25;
+
+    long month = tm->tm_mon;
+    month += 1;
+    month <<= 21;
+
+    long day = tm->tm_mday;
+    day <<= 16;
+
+    long hour = tm->tm_hour;
+    hour <<= 11;
+
+    long minute = tm->tm_min;
+    minute <<= 5;
+
+    long second = tm->tm_sec;
+    second /= 2;
+
+    ddt = year | month | day | hour | minute | second;
+    return ddt;
+}
+
 // ----------------------------------------------------------------------------
 // time_t <-> broken down time conversions
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // time_t <-> broken down time conversions
 // ----------------------------------------------------------------------------
@@ -1211,29 +1617,30 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const
     if ( time != (time_t)-1 )
     {
         // use C RTL functions
     if ( time != (time_t)-1 )
     {
         // use C RTL functions
+        struct tm tmstruct;
         tm *tm;
         if ( tz.GetOffset() == -GetTimeZone() )
         {
             // we are working with local time
         tm *tm;
         if ( tz.GetOffset() == -GetTimeZone() )
         {
             // we are working with local time
-            tm = localtime(&time);
+            tm = wxLocaltime_r(&time, &tmstruct);
 
             // should never happen
 
             // should never happen
-            wxCHECK_MSG( tm, Tm(), _T("localtime() failed") );
+            wxCHECK_MSG( tm, Tm(), _T("wxLocaltime_r() failed") );
         }
         else
         {
             time += (time_t)tz.GetOffset();
         }
         else
         {
             time += (time_t)tz.GetOffset();
-#ifdef __VMS__ // time is unsigned so avoid warning
+#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning
             int time2 = (int) time;
             if ( time2 >= 0 )
 #else
             if ( time >= 0 )
 #endif
             {
             int time2 = (int) time;
             if ( time2 >= 0 )
 #else
             if ( time >= 0 )
 #endif
             {
-                tm = gmtime(&time);
+                tm = wxGmtime_r(&time, &tmstruct);
 
                 // should never happen
 
                 // should never happen
-                wxCHECK_MSG( tm, Tm(), _T("gmtime() failed") );
+                wxCHECK_MSG( tm, Tm(), _T("wxGmtime_r() failed") );
             }
             else
             {
             }
             else
             {
@@ -1309,8 +1716,6 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const
     // check that the algorithm gave us something reasonable
     wxASSERT_MSG( (0 < month) && (month <= 12), _T("invalid month") );
     wxASSERT_MSG( (1 <= day) && (day < 32), _T("invalid day") );
     // check that the algorithm gave us something reasonable
     wxASSERT_MSG( (0 < month) && (month <= 12), _T("invalid month") );
     wxASSERT_MSG( (1 <= day) && (day < 32), _T("invalid day") );
-    wxASSERT_MSG( (INT_MIN <= year) && (year <= INT_MAX),
-                  _T("year range overflow") );
 
     // construct Tm from these values
     Tm tm;
 
     // construct Tm from these values
     Tm tm;
@@ -1321,14 +1726,14 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const
     timeOnly -= tm.msec;
     timeOnly /= 1000;               // now we have time in seconds
 
     timeOnly -= tm.msec;
     timeOnly /= 1000;               // now we have time in seconds
 
-    tm.sec = (wxDateTime_t)(timeOnly % 60);
+    tm.sec = (wxDateTime_t)(timeOnly % SEC_PER_MIN);
     timeOnly -= tm.sec;
     timeOnly -= tm.sec;
-    timeOnly /= 60;                 // now we have time in minutes
+    timeOnly /= SEC_PER_MIN;        // now we have time in minutes
 
 
-    tm.min = (wxDateTime_t)(timeOnly % 60);
+    tm.min = (wxDateTime_t)(timeOnly % MIN_PER_HOUR);
     timeOnly -= tm.min;
 
     timeOnly -= tm.min;
 
-    tm.hour = (wxDateTime_t)(timeOnly / 60);
+    tm.hour = (wxDateTime_t)(timeOnly / MIN_PER_HOUR);
 
     return tm;
 }
 
     return tm;
 }
@@ -1448,22 +1853,66 @@ wxDateTime& wxDateTime::Add(const wxDateSpan& diff)
 // Weekday and monthday stuff
 // ----------------------------------------------------------------------------
 
 // Weekday and monthday stuff
 // ----------------------------------------------------------------------------
 
-bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek, WeekDay weekday)
+// convert Sun, Mon, ..., Sat into 6, 0, ..., 5
+static inline int ConvertWeekDayToMondayBase(int wd)
 {
 {
-    int year = GetYear();
+    return wd == wxDateTime::Sun ? 6 : wd - 1;
+}
+
+/* static */
+wxDateTime
+wxDateTime::SetToWeekOfYear(int year, wxDateTime_t numWeek, WeekDay wd)
+{
+    wxASSERT_MSG( numWeek > 0,
+                  _T("invalid week number: weeks are counted from 1") );
 
     // Jan 4 always lies in the 1st week of the year
 
     // Jan 4 always lies in the 1st week of the year
-    Set(4, Jan, year);
-    SetToWeekDayInSameWeek(weekday) += wxDateSpan::Weeks(numWeek);
+    wxDateTime dt(4, Jan, year);
+    dt.SetToWeekDayInSameWeek(wd);
+    dt += wxDateSpan::Weeks(numWeek - 1);
 
 
+    return dt;
+}
+
+#if WXWIN_COMPATIBILITY_2_6
+// use a separate function to avoid warnings about using deprecated
+// SetToTheWeek in GetWeek below
+static wxDateTime
+SetToTheWeek(int year,
+             wxDateTime::wxDateTime_t numWeek,
+             wxDateTime::WeekDay weekday,
+             wxDateTime::WeekFlags flags)
+{
+    // Jan 4 always lies in the 1st week of the year
+    wxDateTime dt(4, wxDateTime::Jan, year);
+    dt.SetToWeekDayInSameWeek(weekday, flags);
+    dt += wxDateSpan::Weeks(numWeek - 1);
+
+    return dt;
+}
+
+bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek,
+                              WeekDay weekday,
+                              WeekFlags flags)
+{
+    int year = GetYear();
+    *this = ::SetToTheWeek(year, numWeek, weekday, flags);
     if ( GetYear() != year )
     {
         // oops... numWeek was too big
     if ( GetYear() != year )
     {
         // oops... numWeek was too big
-        return FALSE;
+        return false;
     }
 
     }
 
-    return TRUE;
+    return true;
+}
+
+wxDateTime wxDateTime::GetWeek(wxDateTime_t numWeek,
+                               WeekDay weekday,
+                               WeekFlags flags) const
+{
+    return ::SetToTheWeek(GetYear(), numWeek, weekday, flags);
 }
 }
+#endif // WXWIN_COMPATIBILITY_2_6
 
 wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
                                           int year)
 
 wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
                                           int year)
@@ -1477,29 +1926,49 @@ wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
     return Set(GetNumOfDaysInMonth(year, month), month, year);
 }
 
     return Set(GetNumOfDaysInMonth(year, month), month, year);
 }
 
-wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday)
+wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags)
 {
 {
-    wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") );
+    wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
 
 
-    WeekDay wdayThis = GetWeekDay();
-    if ( weekday == wdayThis )
+    int wdayDst = weekday,
+        wdayThis = GetWeekDay();
+    if ( wdayDst == wdayThis )
     {
         // nothing to do
         return *this;
     }
     {
         // nothing to do
         return *this;
     }
-    else if ( weekday < wdayThis )
+
+    if ( flags == Default_First )
+    {
+        flags = GetCountry() == USA ? Sunday_First : Monday_First;
+    }
+
+    // the logic below based on comparing weekday and wdayThis works if Sun (0)
+    // is the first day in the week, but breaks down for Monday_First case so
+    // we adjust the week days in this case
+    if ( flags == Monday_First )
     {
     {
-        return Subtract(wxDateSpan::Days(wdayThis - weekday));
+        if ( wdayThis == Sun )
+            wdayThis += 7;
+        if ( wdayDst == Sun )
+            wdayDst += 7;
+    }
+    //else: Sunday_First, nothing to do
+
+    // go forward or back in time to the day we want
+    if ( wdayDst < wdayThis )
+    {
+        return Subtract(wxDateSpan::Days(wdayThis - wdayDst));
     }
     else // weekday > wdayThis
     {
     }
     else // weekday > wdayThis
     {
-        return Add(wxDateSpan::Days(weekday - wdayThis));
+        return Add(wxDateSpan::Days(wdayDst - wdayThis));
     }
 }
 
 wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday)
 {
     }
 }
 
 wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday)
 {
-    wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") );
+    wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
 
     int diff;
     WeekDay wdayThis = GetWeekDay();
 
     int diff;
     WeekDay wdayThis = GetWeekDay();
@@ -1523,7 +1992,7 @@ wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday)
 
 wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday)
 {
 
 wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday)
 {
-    wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") );
+    wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
 
     int diff;
     WeekDay wdayThis = GetWeekDay();
 
     int diff;
     WeekDay wdayThis = GetWeekDay();
@@ -1550,9 +2019,9 @@ bool wxDateTime::SetToWeekDay(WeekDay weekday,
                               Month month,
                               int year)
 {
                               Month month,
                               int year)
 {
-    wxCHECK_MSG( weekday != Inv_WeekDay, FALSE, _T("invalid weekday") );
+    wxCHECK_MSG( weekday != Inv_WeekDay, false, _T("invalid weekday") );
 
 
-    // we don't check explicitly that -5 <= n <= 5 because we will return FALSE
+    // we don't check explicitly that -5 <= n <= 5 because we will return false
     // anyhow in such case - but may be should still give an assert for it?
 
     // take the current month/year if none specified
     // anyhow in such case - but may be should still give an assert for it?
 
     // take the current month/year if none specified
@@ -1604,52 +2073,87 @@ bool wxDateTime::SetToWeekDay(WeekDay weekday,
     {
         *this = dt;
 
     {
         *this = dt;
 
-        return TRUE;
+        return true;
     }
     else
     {
         // no such day in this month
     }
     else
     {
         // no such day in this month
-        return FALSE;
+        return false;
     }
 }
 
     }
 }
 
-wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const
+static inline
+wxDateTime::wxDateTime_t GetDayOfYearFromTm(const wxDateTime::Tm& tm)
 {
 {
-    Tm tm(GetTm(tz));
+    return (wxDateTime::wxDateTime_t)(gs_cumulatedDays[wxDateTime::IsLeapYear(tm.year)][tm.mon] + tm.mday);
+}
 
 
-    return gs_cumulatedDays[IsLeapYear(tm.year)][tm.mon] + tm.mday;
+wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const
+{
+    return GetDayOfYearFromTm(GetTm(tz));
 }
 
 }
 
-wxDateTime::wxDateTime_t wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags,
-                                                   const TimeZone& tz) const
+wxDateTime::wxDateTime_t
+wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const
 {
     if ( flags == Default_First )
     {
         flags = GetCountry() == USA ? Sunday_First : Monday_First;
     }
 
 {
     if ( flags == Default_First )
     {
         flags = GetCountry() == USA ? Sunday_First : Monday_First;
     }
 
-    wxDateTime_t nDayInYear = GetDayOfYear(tz);
-    wxDateTime_t week;
+    Tm tm(GetTm(tz));
+    wxDateTime_t nDayInYear = GetDayOfYearFromTm(tm);
 
 
-    WeekDay wd = GetWeekDay(tz);
+    int wdTarget = GetWeekDay(tz);
+    int wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay();
+    int week;
     if ( flags == Sunday_First )
     {
     if ( flags == Sunday_First )
     {
-        week = (nDayInYear - wd + 7) / 7;
+        // FIXME: First week is not calculated correctly.
+        week = (nDayInYear - wdTarget + 7) / 7;
+        if ( wdYearStart == Wed || wdYearStart == Thu )
+            week++;
     }
     }
-    else
+    else // week starts with monday
     {
     {
-        // have to shift the week days values
-        week = (nDayInYear - (wd - 1 + 7) % 7 + 7) / 7;
-    }
+        // adjust the weekdays to non-US style.
+        wdYearStart = ConvertWeekDayToMondayBase(wdYearStart);
+        wdTarget = ConvertWeekDayToMondayBase(wdTarget);
 
 
-    // FIXME some more elegant way??
-    WeekDay wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay();
-    if ( wdYearStart == Wed || wdYearStart == Thu )
-    {
-        week++;
+        // quoting from http://www.cl.cam.ac.uk/~mgk25/iso-time.html:
+        //
+        //      Week 01 of a year is per definition the first week that has the
+        //      Thursday in this year, which is equivalent to the week that
+        //      contains the fourth day of January. In other words, the first
+        //      week of a new year is the week that has the majority of its
+        //      days in the new year. Week 01 might also contain days from the
+        //      previous year and the week before week 01 of a year is the last
+        //      week (52 or 53) of the previous year even if it contains days
+        //      from the new year. A week starts with Monday (day 1) and ends
+        //      with Sunday (day 7).
+        //
+
+        // if Jan 1 is Thursday or less, it is in the first week of this year
+        if ( wdYearStart < 4 )
+        {
+            // count the number of entire weeks between Jan 1 and this date
+            week = (nDayInYear + wdYearStart + 6 - wdTarget)/7;
+
+            // be careful to check for overflow in the next year
+            if ( week == 53 && tm.mday - wdTarget > 28 )
+                    week = 1;
+        }
+        else // Jan 1 is in the last week of the previous year
+        {
+            // check if we happen to be at the last week of previous year:
+            if ( tm.mon == Jan && tm.mday < 8 - wdYearStart )
+                week = wxDateTime(31, Dec, GetYear()-1).GetWeekOfYear();
+            else
+                week = (nDayInYear + wdYearStart - 1 - wdTarget)/7;
+        }
     }
 
     }
 
-    return week;
+    return (wxDateTime::wxDateTime_t)week;
 }
 
 wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags,
 }
 
 wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags,
@@ -1671,8 +2175,8 @@ wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags,
 wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday)
 {
     int year = GetYear();
 wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday)
 {
     int year = GetYear();
-    wxCHECK_MSG( (0 < yday) && (yday <= GetNumberOfDays(year)),
-                 wxInvalidDateTime, _T("invalid year day") );
+    wxDATETIME_CHECK( (0 < yday) && (yday <= GetNumberOfDays(year)),
+                      _T("invalid year day") );
 
     bool isLeap = IsLeapYear(year);
     for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) )
 
     bool isLeap = IsLeapYear(year);
     for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) )
@@ -1680,9 +2184,9 @@ wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday)
         // for Dec, we can't compare with gs_cumulatedDays[mon + 1], but we
         // don't need it neither - because of the CHECK above we know that
         // yday lies in December then
         // for Dec, we can't compare with gs_cumulatedDays[mon + 1], but we
         // don't need it neither - because of the CHECK above we know that
         // yday lies in December then
-        if ( (mon == Dec) || (yday < gs_cumulatedDays[isLeap][mon + 1]) )
+        if ( (mon == Dec) || (yday <= gs_cumulatedDays[isLeap][mon + 1]) )
         {
         {
-            Set(yday - gs_cumulatedDays[isLeap][mon], mon, year);
+            Set((wxDateTime::wxDateTime_t)(yday - gs_cumulatedDays[isLeap][mon]), mon, year);
 
             break;
         }
 
             break;
         }
@@ -1697,16 +2201,7 @@ wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday)
 
 double wxDateTime::GetJulianDayNumber() const
 {
 
 double wxDateTime::GetJulianDayNumber() const
 {
-    // JDN are always expressed for the GMT dates
-    Tm tm(ToTimezone(GMT0).GetTm(GMT0));
-
-    double result = GetTruncatedJDN(tm.mday, tm.mon, tm.year);
-
-    // add the part GetTruncatedJDN() neglected
-    result += 0.5;
-
-    // and now add the time: 86400 sec = 1 JDN
-    return result + ((double)(60*(60*tm.hour + tm.min) + tm.sec)) / 86400;
+    return m_time.ToDouble() / MILLISECONDS_PER_DAY + EPOCH_JDN + 0.5;
 }
 
 double wxDateTime::GetRataDie() const
 }
 
 double wxDateTime::GetRataDie() const
@@ -1728,9 +2223,10 @@ int wxDateTime::IsDST(wxDateTime::Country country) const
     time_t timet = GetTicks();
     if ( timet != (time_t)-1 )
     {
     time_t timet = GetTicks();
     if ( timet != (time_t)-1 )
     {
-        tm *tm = localtime(&timet);
+        struct tm tmstruct;
+        tm *tm = wxLocaltime_r(&timet, &tmstruct);
 
 
-        wxCHECK_MSG( tm, -1, _T("localtime() failed") );
+        wxCHECK_MSG( tm, -1, _T("wxLocaltime_r() failed") );
 
         return tm->tm_isdst;
     }
 
         return tm->tm_isdst;
     }
@@ -1760,6 +2256,21 @@ wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST)
         secDiff -= 3600;
     }
 
         secDiff -= 3600;
     }
 
+    return Add(wxTimeSpan::Seconds(secDiff));
+}
+
+wxDateTime& wxDateTime::MakeFromTimezone(const TimeZone& tz, bool noDST)
+{
+    long secDiff = GetTimeZone() + tz.GetOffset();
+
+    // we need to know whether DST is or not in effect for this date unless
+    // the test disabled by the caller
+    if ( !noDST && (IsDST() == 1) )
+    {
+        // FIXME we assume that the DST is always shifted by 1 hour
+        secDiff -= 3600;
+    }
+
     return Subtract(wxTimeSpan::Seconds(secDiff));
 }
 
     return Subtract(wxTimeSpan::Seconds(secDiff));
 }
 
@@ -1769,38 +2280,41 @@ wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST)
 
 wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 {
 
 wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 {
-    wxCHECK_MSG( format, _T(""), _T("NULL format in wxDateTime::Format") );
+    wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxDateTime::Format") );
 
     // we have to use our own implementation if the date is out of range of
     // strftime() or if we use non standard specificators
 
     // we have to use our own implementation if the date is out of range of
     // strftime() or if we use non standard specificators
+#ifdef HAVE_STRFTIME
     time_t time = GetTicks();
     time_t time = GetTicks();
+
     if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) )
     {
         // use strftime()
     if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) )
     {
         // use strftime()
-        tm *tm;
+        struct tm tmstruct;
+        struct tm *tm;
         if ( tz.GetOffset() == -GetTimeZone() )
         {
             // we are working with local time
         if ( tz.GetOffset() == -GetTimeZone() )
         {
             // we are working with local time
-            tm = localtime(&time);
+            tm = wxLocaltime_r(&time, &tmstruct);
 
             // should never happen
 
             // should never happen
-            wxCHECK_MSG( tm, wxEmptyString, _T("localtime() failed") );
+            wxCHECK_MSG( tm, wxEmptyString, _T("wxLocaltime_r() failed") );
         }
         else
         {
             time += (int)tz.GetOffset();
 
         }
         else
         {
             time += (int)tz.GetOffset();
 
-#ifdef __VMS__ // time is unsigned so avoid the warning
+#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning
             int time2 = (int) time;
             if ( time2 >= 0 )
 #else
             if ( time >= 0 )
 #endif
             {
             int time2 = (int) time;
             if ( time2 >= 0 )
 #else
             if ( time >= 0 )
 #endif
             {
-                tm = gmtime(&time);
+                tm = wxGmtime_r(&time, &tmstruct);
 
                 // should never happen
 
                 // should never happen
-                wxCHECK_MSG( tm, wxEmptyString, _T("gmtime() failed") );
+                wxCHECK_MSG( tm, wxEmptyString, _T("wxGmtime_r() failed") );
             }
             else
             {
             }
             else
             {
@@ -1812,8 +2326,9 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
         {
             return CallStrftime(format, tm);
         }
         {
             return CallStrftime(format, tm);
         }
-        //else: use generic code below
     }
     }
+    //else: use generic code below
+#endif // HAVE_STRFTIME
 
     // we only parse ANSI C format specifications here, no POSIX 2
     // complications, no GNU extensions but we do add support for a "%l" format
 
     // we only parse ANSI C format specifications here, no POSIX 2
     // complications, no GNU extensions but we do add support for a "%l" format
@@ -1855,6 +2370,10 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                 fmt = _T("%03d");
                 break;
 
                 fmt = _T("%03d");
                 break;
 
+            case _T('w'):               // week day as number has only one
+                fmt = _T("%d");
+                break;
+
             default:
                 // it's either another valid format specifier in which case
                 // the format is "%02d" (for all the rest) or we have the
             default:
                 // it's either another valid format specifier in which case
                 // the format is "%02d" (for all the rest) or we have the
@@ -1863,17 +2382,17 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                 fmt = _T("%02d");
         }
 
                 fmt = _T("%02d");
         }
 
-        bool restart = TRUE;
+        bool restart = true;
         while ( restart )
         {
         while ( restart )
         {
-            restart = FALSE;
+            restart = false;
 
             // start of the format specification
             switch ( *p )
             {
                 case _T('a'):       // a weekday name
                 case _T('A'):
 
             // start of the format specification
             switch ( *p )
             {
                 case _T('a'):       // a weekday name
                 case _T('A'):
-                    // second parameter should be TRUE for abbreviated names
+                    // second parameter should be true for abbreviated names
                     res += GetWeekDayName(tm.GetWeekDay(),
                                           *p == _T('a') ? Name_Abbr : Name_Full);
                     break;
                     res += GetWeekDayName(tm.GetWeekDay(),
                                           *p == _T('a') ? Name_Abbr : Name_Full);
                     break;
@@ -1886,6 +2405,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 
                 case _T('c'):       // locale default date and time  representation
                 case _T('x'):       // locale default date representation
 
                 case _T('c'):       // locale default date and time  representation
                 case _T('x'):       // locale default date representation
+#ifdef HAVE_STRFTIME
                     //
                     // the problem: there is no way to know what do these format
                     // specifications correspond to for the current locale.
                     //
                     // the problem: there is no way to know what do these format
                     // specifications correspond to for the current locale.
@@ -1894,12 +2414,12 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                     // find the YEAR which is a year in the strftime() range (1970
                     // - 2038) whose Jan 1 falls on the same week day as the Jan 1
                     // of the real year. Then make a copy of the format and
                     // find the YEAR which is a year in the strftime() range (1970
                     // - 2038) whose Jan 1 falls on the same week day as the Jan 1
                     // of the real year. Then make a copy of the format and
-                    // replace all occurences of YEAR in it with some unique
+                    // replace all occurrences of YEAR in it with some unique
                     // string not appearing anywhere else in it, then use
                     // strftime() to format the date in year YEAR and then replace
                     // YEAR back by the real year and the unique replacement
                     // string not appearing anywhere else in it, then use
                     // strftime() to format the date in year YEAR and then replace
                     // YEAR back by the real year and the unique replacement
-                    // string back with YEAR. Notice that "all occurences of YEAR"
-                    // means all occurences of 4 digit as well as 2 digit form!
+                    // string back with YEAR. Notice that "all occurrences of YEAR"
+                    // means all occurrences of 4 digit as well as 2 digit form!
                     //
                     // the bugs: we assume that neither of %c nor %x contains any
                     // fields which may change between the YEAR and real year. For
                     //
                     // the bugs: we assume that neither of %c nor %x contains any
                     // fields which may change between the YEAR and real year. For
@@ -1949,6 +2469,9 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                             nLostWeekDays += year++ % 4 ? 1 : 2;
                         }
 
                             nLostWeekDays += year++ % 4 ? 1 : 2;
                         }
 
+                        // Keep year below 2000 so the 2digit year number
+                        // can never match the month or day of the month
+                        if (year>=2000) year-=28;
                         // at any rate, we couldn't go further than 1988 + 9 + 28!
                         wxASSERT_MSG( year < 2030,
                                       _T("logic error in wxDateTime::Format") );
                         // at any rate, we couldn't go further than 1988 + 9 + 28!
                         wxASSERT_MSG( year < 2030,
                                       _T("logic error in wxDateTime::Format") );
@@ -1957,25 +2480,30 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                         strYear.Printf(_T("%d"), year);
                         strYear2.Printf(_T("%d"), year % 100);
 
                         strYear.Printf(_T("%d"), year);
                         strYear2.Printf(_T("%d"), year % 100);
 
-                        // find two strings not occuring in format (this is surely
-                        // not optimal way of doing it... improvements welcome!)
-                        wxString fmt = format;
-                        wxString replacement = (wxChar)-1;
-                        while ( fmt.Find(replacement) != wxNOT_FOUND )
+                        // find four strings not occurring in format (this is surely
+                        // not the optimal way of doing it... improvements welcome!)
+                        wxString fmt2 = format;
+                        wxString replacement,replacement2,replacement3,replacement4;
+                        for (int rnr=1; rnr<5 ; rnr++)
                         {
                         {
-                            replacement << (wxChar)-1;
-                        }
+                            wxString r = (wxChar)-rnr;
+                            while ( fmt2.Find(r) != wxNOT_FOUND )
+                            {
+                                r << (wxChar)-rnr;
+                            }
 
 
-                        wxString replacement2 = (wxChar)-2;
-                        while ( fmt.Find(replacement) != wxNOT_FOUND )
-                        {
-                            replacement << (wxChar)-2;
+                            switch (rnr)
+                            {
+                                case 1: replacement=r; break;
+                                case 2: replacement2=r; break;
+                                case 3: replacement3=r; break;
+                                case 4: replacement4=r; break;
+                            }
                         }
                         }
-
-                        // replace all occurences of year with it
-                        bool wasReplaced = fmt.Replace(strYear, replacement) > 0;
-                        if ( !wasReplaced )
-                            wasReplaced = fmt.Replace(strYear2, replacement2) > 0;
+                        // replace all occurrences of year with it
+                        bool wasReplaced = fmt2.Replace(strYear, replacement) > 0;
+                        // evaluation order ensures we always attempt the replacement.
+                        wasReplaced = (fmt2.Replace(strYear2, replacement2) > 0) || wasReplaced;
 
                         // use strftime() to format the same date but in supported
                         // year
 
                         // use strftime() to format the same date but in supported
                         // year
@@ -1999,14 +2527,20 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                                                                   : _T("%x"),
                                                     &tmAdjusted);
 
                                                                   : _T("%x"),
                                                     &tmAdjusted);
 
-                        // now replace the occurence of 1999 with the real year
+                        // now replace the occurrence of 1999 with the real year
+                        // we do this in two stages to stop the 2 digit year
+                        // matching any substring of the 4 digit year.
+                        // Any day,month hours and minutes components should be safe due
+                        // to ensuring the range of the years.
                         wxString strYearReal, strYearReal2;
                         strYearReal.Printf(_T("%04d"), yearReal);
                         strYearReal2.Printf(_T("%02d"), yearReal % 100);
                         wxString strYearReal, strYearReal2;
                         strYearReal.Printf(_T("%04d"), yearReal);
                         strYearReal2.Printf(_T("%02d"), yearReal % 100);
-                        str.Replace(strYear, strYearReal);
-                        str.Replace(strYear2, strYearReal2);
+                        str.Replace(strYear, replacement3);
+                        str.Replace(strYear2,replacement4);
+                        str.Replace(replacement3, strYearReal);
+                        str.Replace(replacement4, strYearReal2);
 
 
-                        // and replace back all occurences of replacement string
+                        // and replace back all occurrences of replacement string
                         if ( wasReplaced )
                         {
                             str.Replace(replacement2, strYear2);
                         if ( wasReplaced )
                         {
                             str.Replace(replacement2, strYear2);
@@ -2015,6 +2549,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 
                         res += str;
                     }
 
                         res += str;
                     }
+#else // !HAVE_STRFTIME
+                    // Use "%m/%d/%y %H:%M:%S" format instead
+                    res += wxString::Format(wxT("%02d/%02d/%04d %02d:%02d:%02d"),
+                            tm.mon+1,tm.mday, tm.year, tm.hour, tm.min, tm.sec);
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
                     break;
 
                 case _T('d'):       // day of a month (01-31)
                     break;
 
                 case _T('d'):       // day of a month (01-31)
@@ -2051,7 +2590,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                     break;
 
                 case _T('p'):       // AM or PM string
                     break;
 
                 case _T('p'):       // AM or PM string
+#ifdef HAVE_STRFTIME
                     res += CallStrftime(_T("%p"), &tmTimeOnly);
                     res += CallStrftime(_T("%p"), &tmTimeOnly);
+#else // !HAVE_STRFTIME
+                    res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am");
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
                     break;
 
                 case _T('S'):       // second as a decimal number (00-61)
                     break;
 
                 case _T('S'):       // second as a decimal number (00-61)
@@ -2074,7 +2617,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 
                 case _T('X'):       // locale default time representation
                     // just use strftime() to format the time for us
 
                 case _T('X'):       // locale default time representation
                     // just use strftime() to format the time for us
+#ifdef HAVE_STRFTIME
                     res += CallStrftime(_T("%X"), &tmTimeOnly);
                     res += CallStrftime(_T("%X"), &tmTimeOnly);
+#else // !HAVE_STRFTIME
+                    res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec);
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
                     break;
 
                 case _T('y'):       // year without century (00-99)
                     break;
 
                 case _T('y'):       // year without century (00-99)
@@ -2086,7 +2633,9 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                     break;
 
                 case _T('Z'):       // timezone name
                     break;
 
                 case _T('Z'):       // timezone name
+#ifdef HAVE_STRFTIME
                     res += CallStrftime(_T("%Z"), &tmTimeOnly);
                     res += CallStrftime(_T("%Z"), &tmTimeOnly);
+#endif
                     break;
 
                 default:
                     break;
 
                 default:
@@ -2098,13 +2647,13 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                         fmt += *p;
                     }
 
                         fmt += *p;
                     }
 
-                    if ( !fmt.IsEmpty() )
+                    if ( !fmt.empty() )
                     {
                         // we've only got the flags and width so far in fmt
                         fmt.Prepend(_T('%'));
                         fmt.Append(_T('d'));
 
                     {
                         // we've only got the flags and width so far in fmt
                         fmt.Prepend(_T('%'));
                         fmt.Append(_T('d'));
 
-                        restart = TRUE;
+                        restart = true;
 
                         break;
                     }
 
                         break;
                     }
@@ -2171,11 +2720,11 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         return (wxChar *)NULL;
     }
 
         return (wxChar *)NULL;
     }
 
-    wxDateTime_t day = *p++ - _T('0');
+    wxDateTime_t day = (wxDateTime_t)(*p++ - _T('0'));
     if ( wxIsdigit(*p) )
     {
         day *= 10;
     if ( wxIsdigit(*p) )
     {
         day *= 10;
-        day += *p++ - _T('0');
+        day = (wxDateTime_t)(day + (*p++ - _T('0')));
     }
 
     if ( *p++ != _T(' ') )
     }
 
     if ( *p++ != _T(' ') )
@@ -2269,7 +2818,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         return (wxChar *)NULL;
     }
 
         return (wxChar *)NULL;
     }
 
-    wxDateTime_t hour = *p++ - _T('0');
+    wxDateTime_t hour = (wxDateTime_t)(*p++ - _T('0'));
 
     if ( !wxIsdigit(*p) )
     {
 
     if ( !wxIsdigit(*p) )
     {
@@ -2277,7 +2826,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
     }
 
     hour *= 10;
     }
 
     hour *= 10;
-    hour += *p++ - _T('0');
+    hour = (wxDateTime_t)(hour + (*p++ - _T('0')));
 
     if ( *p++ != _T(':') )
     {
 
     if ( *p++ != _T(':') )
     {
@@ -2289,7 +2838,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         return (wxChar *)NULL;
     }
 
         return (wxChar *)NULL;
     }
 
-    wxDateTime_t min = *p++ - _T('0');
+    wxDateTime_t min = (wxDateTime_t)(*p++ - _T('0'));
 
     if ( !wxIsdigit(*p) )
     {
 
     if ( !wxIsdigit(*p) )
     {
@@ -2297,7 +2846,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
     }
 
     min *= 10;
     }
 
     min *= 10;
-    min += *p++ - _T('0');
+    min = (wxDateTime_t)(min + *p++ - _T('0'));
 
     wxDateTime_t sec = 0;
     if ( *p++ == _T(':') )
 
     wxDateTime_t sec = 0;
     if ( *p++ == _T(':') )
@@ -2307,7 +2856,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
             return (wxChar *)NULL;
         }
 
             return (wxChar *)NULL;
         }
 
-        sec = *p++ - _T('0');
+        sec = (wxDateTime_t)(*p++ - _T('0'));
 
         if ( !wxIsdigit(*p) )
         {
 
         if ( !wxIsdigit(*p) )
         {
@@ -2315,7 +2864,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         }
 
         sec *= 10;
         }
 
         sec *= 10;
-        sec += *p++ - _T('0');
+        sec = (wxDateTime_t)(sec + *p++ - _T('0'));
     }
 
     if ( *p++ != _T(' ') )
     }
 
     if ( *p++ != _T(' ') )
@@ -2324,7 +2873,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
     }
 
     // and now the interesting part: the timezone
     }
 
     // and now the interesting part: the timezone
-    int offset;
+    int offset wxDUMMY_INITIALIZE(0);
     if ( *p == _T('-') || *p == _T('+') )
     {
         // the explicit offset given: it has the form of hhmm
     if ( *p == _T('-') || *p == _T('+') )
     {
         // the explicit offset given: it has the form of hhmm
@@ -2336,7 +2885,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         }
 
         // hours
         }
 
         // hours
-        offset = 60*(10*(*p - _T('0')) + (*(p + 1) - _T('0')));
+        offset = MIN_PER_HOUR*(10*(*p - _T('0')) + (*(p + 1) - _T('0')));
 
         p += 2;
 
 
         p += 2;
 
@@ -2416,16 +2965,176 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         }
 
         // make it minutes
         }
 
         // make it minutes
-        offset *= 60;
+        offset *= MIN_PER_HOUR;
     }
 
     }
 
-    // the spec was correct
+    // the spec was correct, construct the date from the values we found
     Set(day, mon, year, hour, min, sec);
     Set(day, mon, year, hour, min, sec);
-    MakeTimezone((wxDateTime_t)(60*offset));
+    MakeFromTimezone(TimeZone((wxDateTime_t)(offset*SEC_PER_MIN)));
 
     return p;
 }
 
 
     return p;
 }
 
+#ifdef __WINDOWS__
+
+// returns the string containing strftime() format used for short dates in the
+// current locale or an empty string
+static wxString GetLocaleDateFormat()
+{
+    wxString fmtWX;
+
+    // there is no setlocale() under Windows CE, so just always query the
+    // system there
+#ifndef __WXWINCE__
+    if ( strcmp(setlocale(LC_ALL, NULL), "C") != 0 )
+#endif
+    {
+        // The locale was programatically set to non-C. We assume that this was
+        // done using wxLocale, in which case thread's current locale is also
+        // set to correct LCID value and we can use GetLocaleInfo to determine
+        // the correct formatting string:
+#ifdef __WXWINCE__
+        LCID lcid = LOCALE_USER_DEFAULT;
+#else
+        LCID lcid = GetThreadLocale();
+#endif
+        // according to MSDN 80 chars is max allowed for short date format
+        wxChar fmt[81];
+        if ( ::GetLocaleInfo(lcid, LOCALE_SSHORTDATE, fmt, WXSIZEOF(fmt)) )
+        {
+            wxChar chLast = _T('\0');
+            size_t lastCount = 0;
+            for ( const wxChar *p = fmt; /* NUL handled inside */; p++ )
+            {
+                if ( *p == chLast )
+                {
+                    lastCount++;
+                    continue;
+                }
+
+                switch ( *p )
+                {
+                    // these characters come in groups, start counting them
+                    case _T('d'):
+                    case _T('M'):
+                    case _T('y'):
+                    case _T('g'):
+                        chLast = *p;
+                        lastCount = 1;
+                        break;
+
+                    default:
+                        // first deal with any special characters we have had
+                        if ( lastCount )
+                        {
+                            switch ( chLast )
+                            {
+                                case _T('d'):
+                                    switch ( lastCount )
+                                    {
+                                        case 1: // d
+                                        case 2: // dd
+                                            // these two are the same as we
+                                            // don't distinguish between 1 and
+                                            // 2 digits for days
+                                            fmtWX += _T("%d");
+                                            break;
+
+                                        case 3: // ddd
+                                            fmtWX += _T("%a");
+                                            break;
+
+                                        case 4: // dddd
+                                            fmtWX += _T("%A");
+                                            break;
+
+                                        default:
+                                            wxFAIL_MSG( _T("too many 'd's") );
+                                    }
+                                    break;
+
+                                case _T('M'):
+                                    switch ( lastCount )
+                                    {
+                                        case 1: // M
+                                        case 2: // MM
+                                            // as for 'd' and 'dd' above
+                                            fmtWX += _T("%m");
+                                            break;
+
+                                        case 3:
+                                            fmtWX += _T("%b");
+                                            break;
+
+                                        case 4:
+                                            fmtWX += _T("%B");
+                                            break;
+
+                                        default:
+                                            wxFAIL_MSG( _T("too many 'M's") );
+                                    }
+                                    break;
+
+                                case _T('y'):
+                                    switch ( lastCount )
+                                    {
+                                        case 1: // y
+                                        case 2: // yy
+                                            fmtWX += _T("%y");
+                                            break;
+
+                                        case 4: // yyyy
+                                            fmtWX += _T("%Y");
+                                            break;
+
+                                        default:
+                                            wxFAIL_MSG( _T("wrong number of 'y's") );
+                                    }
+                                    break;
+
+                                case _T('g'):
+                                    // strftime() doesn't have era string,
+                                    // ignore this format
+                                    wxASSERT_MSG( lastCount <= 2,
+                                                  _T("too many 'g's") );
+                                    break;
+
+                                default:
+                                    wxFAIL_MSG( _T("unreachable") );
+                            }
+
+                            chLast = _T('\0');
+                            lastCount = 0;
+                        }
+
+                        // not a special character so must be just a separator,
+                        // treat as is
+                        if ( *p != _T('\0') )
+                        {
+                            if ( *p == _T('%') )
+                            {
+                                // this one needs to be escaped
+                                fmtWX += _T('%');
+                            }
+
+                            fmtWX += *p;
+                        }
+                }
+
+                if ( *p == _T('\0') )
+                    break;
+            }
+        }
+        //else: GetLocaleInfo() failed, leave fmtDate value unchanged and
+        //      try our luck with the default formats
+    }
+    //else: default C locale, default formats should work
+
+    return fmtWX;
+}
+
+#endif // __WINDOWS__
+
 const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                                       const wxChar *format,
                                       const wxDateTime& dateDef)
 const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                                       const wxChar *format,
                                       const wxDateTime& dateDef)
@@ -2437,17 +3146,17 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
     unsigned long num;
 
     // what fields have we found?
     unsigned long num;
 
     // what fields have we found?
-    bool haveWDay = FALSE,
-         haveYDay = FALSE,
-         haveDay = FALSE,
-         haveMon = FALSE,
-         haveYear = FALSE,
-         haveHour = FALSE,
-         haveMin = FALSE,
-         haveSec = FALSE;
-
-    bool hourIsIn12hFormat = FALSE, // or in 24h one?
-         isPM = FALSE;              // AM by default
+    bool haveWDay = false,
+         haveYDay = false,
+         haveDay = false,
+         haveMon = false,
+         haveYear = false,
+         haveHour = false,
+         haveMin = false,
+         haveSec = false;
+
+    bool hourIsIn12hFormat = false, // or in 24h one?
+         isPM = false;              // AM by default
 
     // and the value of the items we have (init them to get rid of warnings)
     wxDateTime_t sec = 0,
 
     // and the value of the items we have (init them to get rid of warnings)
     wxDateTime_t sec = 0,
@@ -2492,12 +3201,36 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
 
         // parse the optional width
         size_t width = 0;
 
         // parse the optional width
         size_t width = 0;
-        while ( isdigit(*++fmt) )
+        while ( wxIsdigit(*++fmt) )
         {
             width *= 10;
             width += *fmt - _T('0');
         }
 
         {
             width *= 10;
             width += *fmt - _T('0');
         }
 
+        // the default widths for the various fields
+        if ( !width )
+        {
+            switch ( *fmt )
+            {
+                case _T('Y'):               // year has 4 digits
+                    width = 4;
+                    break;
+
+                case _T('j'):               // day of year has 3 digits
+                case _T('l'):               // milliseconds have 3 digits
+                    width = 3;
+                    break;
+
+                case _T('w'):               // week day as number has only one
+                    width = 1;
+                    break;
+
+                default:
+                    // default for all other fields
+                    width = 2;
+            }
+        }
+
         // then the format itself
         switch ( *fmt )
         {
         // then the format itself
         switch ( *fmt )
         {
@@ -2512,7 +3245,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                         return (wxChar *)NULL;
                     }
                 }
                         return (wxChar *)NULL;
                     }
                 }
-                haveWDay = TRUE;
+                haveWDay = true;
                 break;
 
             case _T('b'):       // a month name
                 break;
 
             case _T('b'):       // a month name
@@ -2526,7 +3259,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                         return (wxChar *)NULL;
                     }
                 }
                         return (wxChar *)NULL;
                     }
                 }
-                haveMon = TRUE;
+                haveMon = true;
                 break;
 
             case _T('c'):       // locale default date and time  representation
                 break;
 
             case _T('c'):       // locale default date and time  representation
@@ -2557,7 +3290,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     Tm tm = dt.GetTm();
 
                     haveDay = haveMon = haveYear =
                     Tm tm = dt.GetTm();
 
                     haveDay = haveMon = haveYear =
-                    haveHour = haveMin = haveSec = TRUE;
+                    haveHour = haveMin = haveSec = true;
 
                     hour = tm.hour;
                     min = tm.min;
 
                     hour = tm.hour;
                     min = tm.min;
@@ -2581,7 +3314,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
 
                 // we can't check whether the day range is correct yet, will
                 // do it later - assume ok for now
 
                 // we can't check whether the day range is correct yet, will
                 // do it later - assume ok for now
-                haveDay = TRUE;
+                haveDay = true;
                 mday = (wxDateTime_t)num;
                 break;
 
                 mday = (wxDateTime_t)num;
                 break;
 
@@ -2592,7 +3325,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveHour = TRUE;
+                haveHour = true;
                 hour = (wxDateTime_t)num;
                 break;
 
                 hour = (wxDateTime_t)num;
                 break;
 
@@ -2603,8 +3336,8 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveHour = TRUE;
-                hourIsIn12hFormat = TRUE;
+                haveHour = true;
+                hourIsIn12hFormat = true;
                 hour = (wxDateTime_t)(num % 12);        // 12 should be 0
                 break;
 
                 hour = (wxDateTime_t)(num % 12);        // 12 should be 0
                 break;
 
@@ -2615,7 +3348,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveYDay = TRUE;
+                haveYDay = true;
                 yday = (wxDateTime_t)num;
                 break;
 
                 yday = (wxDateTime_t)num;
                 break;
 
@@ -2626,7 +3359,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveMon = TRUE;
+                haveMon = true;
                 mon = (Month)(num - 1);
                 break;
 
                 mon = (Month)(num - 1);
                 break;
 
@@ -2637,7 +3370,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveMin = TRUE;
+                haveMin = true;
                 min = (wxDateTime_t)num;
                 break;
 
                 min = (wxDateTime_t)num;
                 break;
 
@@ -2646,9 +3379,11 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     wxString am, pm, token = GetAlphaToken(input);
 
                     GetAmPmStrings(&am, &pm);
                     wxString am, pm, token = GetAlphaToken(input);
 
                     GetAmPmStrings(&am, &pm);
+                    if (am.empty() && pm.empty())
+                        return (wxChar *)NULL;  // no am/pm strings defined
                     if ( token.CmpNoCase(pm) == 0 )
                     {
                     if ( token.CmpNoCase(pm) == 0 )
                     {
-                        isPM = TRUE;
+                        isPM = true;
                     }
                     else if ( token.CmpNoCase(am) != 0 )
                     {
                     }
                     else if ( token.CmpNoCase(am) != 0 )
                     {
@@ -2668,7 +3403,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                         return (wxChar *)NULL;
                     }
 
                         return (wxChar *)NULL;
                     }
 
-                    haveHour = haveMin = haveSec = TRUE;
+                    haveHour = haveMin = haveSec = true;
 
                     Tm tm = dt.GetTm();
                     hour = tm.hour;
 
                     Tm tm = dt.GetTm();
                     hour = tm.hour;
@@ -2687,12 +3422,13 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                         return (wxChar *)NULL;
                     }
 
                         return (wxChar *)NULL;
                     }
 
-                    haveHour = haveMin = TRUE;
+                    haveHour = haveMin = true;
 
                     Tm tm = dt.GetTm();
                     hour = tm.hour;
                     min = tm.min;
                 }
 
                     Tm tm = dt.GetTm();
                     hour = tm.hour;
                     min = tm.min;
                 }
+                break;
 
             case _T('S'):       // second as a decimal number (00-61)
                 if ( !GetNumericToken(width, input, &num) || (num > 61) )
 
             case _T('S'):       // second as a decimal number (00-61)
                 if ( !GetNumericToken(width, input, &num) || (num > 61) )
@@ -2701,7 +3437,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveSec = TRUE;
+                haveSec = true;
                 sec = (wxDateTime_t)num;
                 break;
 
                 sec = (wxDateTime_t)num;
                 break;
 
@@ -2715,7 +3451,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                         return (wxChar *)NULL;
                     }
 
                         return (wxChar *)NULL;
                     }
 
-                    haveHour = haveMin = haveSec = TRUE;
+                    haveHour = haveMin = haveSec = true;
 
                     Tm tm = dt.GetTm();
                     hour = tm.hour;
 
                     Tm tm = dt.GetTm();
                     hour = tm.hour;
@@ -2731,23 +3467,24 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveWDay = TRUE;
+                haveWDay = true;
                 wday = (WeekDay)num;
                 break;
 
             case _T('x'):       // locale default date representation
 #ifdef HAVE_STRPTIME
                 wday = (WeekDay)num;
                 break;
 
             case _T('x'):       // locale default date representation
 #ifdef HAVE_STRPTIME
-                // try using strptime() - it may fail even if the input is
+                // try using strptime() -- it may fail even if the input is
                 // correct but the date is out of range, so we will fall back
                 // correct but the date is out of range, so we will fall back
-                // to our generic code anyhow (FIXME !Unicode friendly)
+                // to our generic code anyhow
                 {
                     struct tm tm;
                 {
                     struct tm tm;
-                    const wxChar *result = strptime(input, "%x", &tm);
+
+                    const wxChar *result = CallStrptime(input, "%x", &tm);
                     if ( result )
                     {
                         input = result;
 
                     if ( result )
                     {
                         input = result;
 
-                        haveDay = haveMon = haveYear = TRUE;
+                        haveDay = haveMon = haveYear = true;
 
                         year = 1900 + tm.tm_year;
                         mon = (Month)tm.tm_mon;
 
                         year = 1900 + tm.tm_year;
                         mon = (Month)tm.tm_mon;
@@ -2758,26 +3495,34 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                 }
 #endif // HAVE_STRPTIME
 
                 }
 #endif // HAVE_STRPTIME
 
-                // TODO query the LOCALE_IDATE setting under Win32
                 {
                     wxDateTime dt;
                 {
                     wxDateTime dt;
-
-                    wxString fmtDate, fmtDateAlt;
-                    if ( IsWestEuropeanCountry(GetCountry()) ||
-                         GetCountry() == Russia )
-                    {
-                        fmtDate = _T("%d/%m/%y");
-                        fmtDateAlt = _T("%m/%d/%y");
-                    }
-                    else // assume USA
+                    wxString fmtDate,
+                             fmtDateAlt;
+
+#ifdef __WINDOWS__
+                    // The above doesn't work for all locales, try to query
+                    // Windows for the right way of formatting the date:
+                    fmtDate = GetLocaleDateFormat();
+                    if ( fmtDate.empty() )
+#endif
                     {
                     {
-                        fmtDate = _T("%m/%d/%y");
-                        fmtDateAlt = _T("%d/%m/%y");
+                        if ( IsWestEuropeanCountry(GetCountry()) ||
+                             GetCountry() == Russia )
+                        {
+                            fmtDate = _T("%d/%m/%y");
+                            fmtDateAlt = _T("%m/%d/%y");
+                        }
+                        else // assume USA
+                        {
+                            fmtDate = _T("%m/%d/%y");
+                            fmtDateAlt = _T("%d/%m/%y");
+                        }
                     }
 
                     const wxChar *result = dt.ParseFormat(input, fmtDate);
 
                     }
 
                     const wxChar *result = dt.ParseFormat(input, fmtDate);
 
-                    if ( !result )
+                    if ( !result && !fmtDateAlt.empty() )
                     {
                         // ok, be nice and try another one
                         result = dt.ParseFormat(input, fmtDateAlt);
                     {
                         // ok, be nice and try another one
                         result = dt.ParseFormat(input, fmtDateAlt);
@@ -2791,7 +3536,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
 
                     Tm tm = dt.GetTm();
 
 
                     Tm tm = dt.GetTm();
 
-                    haveDay = haveMon = haveYear = TRUE;
+                    haveDay = haveMon = haveYear = true;
 
                     year = tm.year;
                     mon = tm.mon;
 
                     year = tm.year;
                     mon = tm.mon;
@@ -2807,13 +3552,13 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                 {
                     // use strptime() to do it for us (FIXME !Unicode friendly)
                     struct tm tm;
                 {
                     // use strptime() to do it for us (FIXME !Unicode friendly)
                     struct tm tm;
-                    input = strptime(input, "%X", &tm);
+                    input = CallStrptime(input, "%X", &tm);
                     if ( !input )
                     {
                         return (wxChar *)NULL;
                     }
 
                     if ( !input )
                     {
                         return (wxChar *)NULL;
                     }
 
-                    haveHour = haveMin = haveSec = TRUE;
+                    haveHour = haveMin = haveSec = true;
 
                     hour = tm.tm_hour;
                     min = tm.tm_min;
 
                     hour = tm.tm_hour;
                     min = tm.tm_min;
@@ -2841,7 +3586,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                         return (wxChar *)NULL;
                     }
 
                         return (wxChar *)NULL;
                     }
 
-                    haveHour = haveMin = haveSec = TRUE;
+                    haveHour = haveMin = haveSec = true;
 
                     Tm tm = dt.GetTm();
                     hour = tm.hour;
 
                     Tm tm = dt.GetTm();
                     hour = tm.hour;
@@ -2860,7 +3605,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveYear = TRUE;
+                haveYear = true;
 
                 // TODO should have an option for roll over date instead of
                 //      hard coding it here
 
                 // TODO should have an option for roll over date instead of
                 //      hard coding it here
@@ -2874,7 +3619,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     return (wxChar *)NULL;
                 }
 
                     return (wxChar *)NULL;
                 }
 
-                haveYear = TRUE;
+                haveYear = true;
                 year = (wxDateTime_t)num;
                 break;
 
                 year = (wxDateTime_t)num;
                 break;
 
@@ -2907,11 +3652,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
         // take this date as default
         tmDef = dateDef.GetTm();
     }
         // take this date as default
         tmDef = dateDef.GetTm();
     }
-#ifdef __WIN16__
-    else if ( m_time != 0 )
-#else
-    else if ( m_time != wxLongLong(0) )
-#endif
+    else if ( IsValid() )
     {
         // if this date is valid, don't change it
         tmDef = GetTm();
     {
         // if this date is valid, don't change it
         tmDef = GetTm();
@@ -2986,6 +3727,14 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
 
     Set(tm);
 
 
     Set(tm);
 
+    // finally check that the week day is consistent -- if we had it
+    if ( haveWDay && GetWeekDay() != wday )
+    {
+        wxLogDebug(_T("inconsistsnet week day in wxDateTime::ParseFormat()"));
+
+        return NULL;
+    }
+
     return input;
 }
 
     return input;
 }
 
@@ -2993,11 +3742,48 @@ const wxChar *wxDateTime::ParseDateTime(const wxChar *date)
 {
     wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
 
 {
     wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
 
-    // there is a public domain version of getdate.y, but it only works for
-    // English...
-    wxFAIL_MSG(_T("TODO"));
+    // Set to current day and hour, so strings like '14:00' becomes today at
+    // 14, not some other random date
+    wxDateTime dtDate = wxDateTime::Today();
+    wxDateTime dtTime = wxDateTime::Today();
 
 
-    return (wxChar *)NULL;
+    const wxChar* pchTime;
+
+    // Try to parse the beginning of the string as a date
+    const wxChar* pchDate = dtDate.ParseDate(date);
+
+    // We got a date in the beginning, see if there is a time specified after the date
+    if ( pchDate )
+    {
+        // Skip spaces, as the ParseTime() function fails on spaces
+        while ( wxIsspace(*pchDate) )
+            pchDate++;
+
+        pchTime = dtTime.ParseTime(pchDate);
+    }
+    else // no date in the beginning
+    {
+        // check and see if we have a time followed by a date
+        pchTime = dtTime.ParseTime(date);
+        if ( pchTime )
+        {
+            while ( wxIsspace(*pchTime) )
+                pchTime++;
+
+            pchDate = dtDate.ParseDate(pchTime);
+        }
+    }
+
+    // If we have a date specified, set our own data to the same date
+    if ( !pchDate || !pchTime )
+        return NULL;
+
+    Set(dtDate.GetDay(), dtDate.GetMonth(), dtDate.GetYear(),
+        dtTime.GetHour(), dtTime.GetMinute(), dtTime.GetSecond(),
+        dtTime.GetMillisecond());
+
+    // Return endpoint of scan
+    return pchDate > pchTime ? pchDate : pchTime;
 }
 
 const wxChar *wxDateTime::ParseDate(const wxChar *date)
 }
 
 const wxChar *wxDateTime::ParseDate(const wxChar *date)
@@ -3026,29 +3812,38 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
 
     for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ )
     {
 
     for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ )
     {
-        wxString date = wxGetTranslation(literalDates[n].str);
-        size_t len = date.length();
-        if ( wxStrlen(p) >= len && (wxString(p, len).CmpNoCase(date) == 0) )
+        const wxString dateStr = wxGetTranslation(literalDates[n].str);
+        size_t len = dateStr.length();
+        if ( wxStrlen(p) >= len )
         {
         {
-            // nothing can follow this, so stop here
-            p += len;
-
-            int dayDiffFromToday = literalDates[n].dayDiffFromToday;
-            *this = Today();
-            if ( dayDiffFromToday )
+            wxString str(p, len);
+            if ( str.CmpNoCase(dateStr) == 0 )
             {
             {
-                *this += wxDateSpan::Days(dayDiffFromToday);
-            }
+                // nothing can follow this, so stop here
+                p += len;
 
 
-            return p;
+                int dayDiffFromToday = literalDates[n].dayDiffFromToday;
+                *this = Today();
+                if ( dayDiffFromToday )
+                {
+                    *this += wxDateSpan::Days(dayDiffFromToday);
+                }
+
+                return p;
+            }
         }
     }
 
         }
     }
 
+    // We try to guess what we have here: for each new (numeric) token, we
+    // determine if it can be a month, day or a year. Of course, there is an
+    // ambiguity as some numbers may be days as well as months, so we also
+    // have the ability to back track.
+
     // what do we have?
     // what do we have?
-    bool haveDay = FALSE,       // the months day?
-         haveWDay = FALSE,      // the day of week?
-         haveMon = FALSE,       // the month?
-         haveYear = FALSE;      // the year?
+    bool haveDay = false,       // the months day?
+         haveWDay = false,      // the day of week?
+         haveMon = false,       // the month?
+         haveYear = false;      // the year?
 
     // and the value of the items we have (init them to get rid of warnings)
     WeekDay wday = Inv_WeekDay;
 
     // and the value of the items we have (init them to get rid of warnings)
     WeekDay wday = Inv_WeekDay;
@@ -3058,11 +3853,13 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
 
     // tokenize the string
     size_t nPosCur = 0;
 
     // tokenize the string
     size_t nPosCur = 0;
-    static const wxChar *dateDelimiters = _T(".,/-\t\n ");
+    static const wxChar *dateDelimiters = _T(".,/-\t\r\n ");
     wxStringTokenizer tok(p, dateDelimiters);
     while ( tok.HasMoreTokens() )
     {
         wxString token = tok.GetNextToken();
     wxStringTokenizer tok(p, dateDelimiters);
     while ( tok.HasMoreTokens() )
     {
         wxString token = tok.GetNextToken();
+        if ( !token )
+            continue;
 
         // is it a number?
         unsigned long val;
 
         // is it a number?
         unsigned long val;
@@ -3070,112 +3867,68 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
         {
             // guess what this number is
 
         {
             // guess what this number is
 
-            bool isDay = FALSE,
-                 isMonth = FALSE,
-                 // only years are counted from 0
-                 isYear = (val == 0) || (val > 31);
-            if ( !isYear )
+            bool isDay = false,
+                 isMonth = false,
+                 isYear = false;
+
+            if ( !haveMon && val > 0 && val <= 12 )
+            {
+                // assume it is month
+                isMonth = true;
+            }
+            else // not the month
             {
             {
-                // may be the month or month day or the year, assume the
-                // month day by default and fallback to month if the range
-                // allow it or to the year if our assumption doesn't work
                 if ( haveDay )
                 {
                 if ( haveDay )
                 {
-                    // we already have the day, so may only be a month or year
-                    if ( val > 12 )
-                    {
-                        isYear = TRUE;
-                    }
-                    else
-                    {
-                        isMonth = TRUE;
-                    }
+                    // this can only be the year
+                    isYear = true;
                 }
                 }
-                else // it may be day
+                else // may be either day or year
                 {
                 {
-                    isDay = TRUE;
-
-                    // check the range
-                    if ( haveMon )
+                    // use a leap year if we don't have the year yet to allow
+                    // dates like 2/29/1976 which would be rejected otherwise
+                    wxDateTime_t max_days = (wxDateTime_t)(
+                        haveMon
+                        ? GetNumOfDaysInMonth(haveYear ? year : 1976, mon)
+                        : 31
+                    );
+
+                    // can it be day?
+                    if ( (val == 0) || (val > (unsigned long)max_days) )
                     {
                     {
-                        if ( val > GetNumOfDaysInMonth(haveYear ? year
-                                                                : Inv_Year,
-                                                       mon) )
-                        {
-                            // oops, it can't be a day finally
-                            isDay = FALSE;
-
-                            if ( val > 12 )
-                            {
-                                isYear = TRUE;
-                            }
-                            else
-                            {
-                                isMonth = TRUE;
-                            }
-                        }
+                        // no
+                        isYear = true;
+                    }
+                    else // yes, suppose it's the day
+                    {
+                        isDay = true;
                     }
                 }
             }
 
                     }
                 }
             }
 
-            // remember that we have this and stop the scan if it's the second
-            // time we find this, except for the day logic (see there)
             if ( isYear )
             {
                 if ( haveYear )
             if ( isYear )
             {
                 if ( haveYear )
-                {
                     break;
                     break;
-                }
 
 
-                haveYear = TRUE;
+                haveYear = true;
 
 
-                // no roll over - 99 means 99, not 1999 for us
                 year = (wxDateTime_t)val;
             }
                 year = (wxDateTime_t)val;
             }
-            else if ( isMonth )
+            else if ( isDay )
             {
             {
-                if ( haveMon )
-                {
+                if ( haveDay )
                     break;
                     break;
-                }
 
 
-                haveMon = TRUE;
+                haveDay = true;
 
 
-                // month 1 is Jan
-                mon = (wxDateTime::Month)(val - 1);
+                day = (wxDateTime_t)val;
             }
             }
-            else
+            else if ( isMonth )
             {
             {
-                wxASSERT_MSG( isDay, _T("logic error") );
-
-                if ( haveDay )
-                {
-                    // may be were mistaken when we found it for the first
-                    // time? may be it was a month or year instead?
-                    //
-                    // this ability to "backtrack" allows us to correctly parse
-                    // both things like 01/13 and 13/01 - but, of course, we
-                    // still can't resolve the ambiguity in 01/02 (it will be
-                    // Feb 1 for us, not Jan 2 as americans might expect!)
-                    if ( (day <= 12) && !haveMon )
-                    {
-                        // exchange day and month
-                        mon = (wxDateTime::Month)(day - 1);
-
-                        haveMon = TRUE;
-                    }
-                    else if ( !haveYear )
-                    {
-                        // exchange day and year
-                        year = day;
-
-                        haveYear = TRUE;
-                    }
-                }
-
-                haveDay = TRUE;
+                haveMon = true;
 
 
-                day = (wxDateTime_t)val;
+                mon = (Month)(val - 1);
             }
         }
         else // not a number
             }
         }
         else // not a number
@@ -3187,14 +3940,27 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                 // it's a month
                 if ( haveMon )
                 {
                 // it's a month
                 if ( haveMon )
                 {
-                    break;
+                    // but we already have a month - maybe we guessed wrong?
+                    if ( !haveDay )
+                    {
+                        // no need to check in month range as always < 12, but
+                        // the days are counted from 1 unlike the months
+                        day = (wxDateTime_t)(mon + 1);
+                        haveDay = true;
+                    }
+                    else
+                    {
+                        // could possible be the year (doesn't the year come
+                        // before the month in the japanese format?) (FIXME)
+                        break;
+                    }
                 }
 
                 mon = mon2;
 
                 }
 
                 mon = mon2;
 
-                haveMon = TRUE;
+                haveMon = true;
             }
             }
-            else
+            else // not a valid month name
             {
                 wday = GetWeekDayFromName(token, Name_Full | Name_Abbr);
                 if ( wday != Inv_WeekDay )
             {
                 wday = GetWeekDayFromName(token, Name_Full | Name_Abbr);
                 if ( wday != Inv_WeekDay )
@@ -3205,9 +3971,9 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                         break;
                     }
 
                         break;
                     }
 
-                    haveWDay = TRUE;
+                    haveWDay = true;
                 }
                 }
-                else
+                else // not a valid weekday name
                 {
                     // try the ordinals
                     static const wxChar *ordinals[] =
                 {
                     // try the ordinals
                     static const wxChar *ordinals[] =
@@ -3233,7 +3999,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                         wxTRANSLATE("nineteenth"),
                         wxTRANSLATE("twentieth"),
                         // that's enough - otherwise we'd have problems with
                         wxTRANSLATE("nineteenth"),
                         wxTRANSLATE("twentieth"),
                         // that's enough - otherwise we'd have problems with
-                        // composite (or not) ordinals otherwise
+                        // composite (or not) ordinals
                     };
 
                     size_t n;
                     };
 
                     size_t n;
@@ -3260,9 +4026,9 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                         break;
                     }
 
                         break;
                     }
 
-                    haveDay = TRUE;
+                    haveDay = true;
 
 
-                    day = n + 1;
+                    day = (wxDateTime_t)(n + 1);
                 }
             }
         }
                 }
             }
         }
@@ -3276,7 +4042,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
     {
         wxLogDebug(_T("ParseDate: no day, no weekday hence no date."));
 
     {
         wxLogDebug(_T("ParseDate: no day, no weekday hence no date."));
 
-        return (wxChar *)NULL;
+        return NULL;
     }
 
     if ( haveWDay && (haveMon || haveYear || haveDay) &&
     }
 
     if ( haveWDay && (haveMon || haveYear || haveDay) &&
@@ -3285,7 +4051,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
         // without adjectives (which we don't support here) the week day only
         // makes sense completely separately or with the full date
         // specification (what would "Wed 1999" mean?)
         // without adjectives (which we don't support here) the week day only
         // makes sense completely separately or with the full date
         // specification (what would "Wed 1999" mean?)
-        return (wxChar *)NULL;
+        return NULL;
     }
 
     if ( !haveWDay && haveYear && !(haveDay && haveMon) )
     }
 
     if ( !haveWDay && haveYear && !(haveDay && haveMon) )
@@ -3299,14 +4065,14 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                 mon = (wxDateTime::Month)(day - 1);
 
                 // we're in the current year then
                 mon = (wxDateTime::Month)(day - 1);
 
                 // we're in the current year then
-                if ( year <= GetNumOfDaysInMonth(Inv_Year, mon) )
+                if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) )
                 {
                 {
-                    day = year;
+                    day = (wxDateTime_t)year;
 
 
-                    haveMon = TRUE;
-                    haveYear = FALSE;
+                    haveMon = true;
+                    haveYear = false;
                 }
                 }
-                //else: no, can't exchange, leave haveMon == FALSE
+                //else: no, can't exchange, leave haveMon == false
             }
         }
 
             }
         }
 
@@ -3315,7 +4081,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
             // if we give the year, month and day must be given too
             wxLogDebug(_T("ParseDate: day and month should be specified if year is."));
 
             // if we give the year, month and day must be given too
             wxLogDebug(_T("ParseDate: day and month should be specified if year is."));
 
-            return (wxChar *)NULL;
+            return NULL;
         }
     }
 
         }
     }
 
@@ -3331,6 +4097,11 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
 
     if ( haveDay )
     {
 
     if ( haveDay )
     {
+        // normally we check the day above but the check is optimistic in case
+        // we find the day before its month/year so we have to redo it now
+        if ( day > GetNumOfDaysInMonth(year, mon) )
+            return NULL;
+
         Set(day, mon, year);
 
         if ( haveWDay )
         Set(day, mon, year);
 
         if ( haveWDay )
@@ -3386,14 +4157,19 @@ const wxChar *wxDateTime::ParseTime(const wxChar *time)
         size_t len = timeString.length();
         if ( timeString.CmpNoCase(wxString(time, len)) == 0 )
         {
         size_t len = timeString.length();
         if ( timeString.CmpNoCase(wxString(time, len)) == 0 )
         {
-            Set(stdTimes[n].hour, 0, 0);
+            // casts required by DigitalMars
+            Set(stdTimes[n].hour, wxDateTime_t(0), wxDateTime_t(0));
 
             return time + len;
         }
     }
 
 
             return time + len;
         }
     }
 
-    // try all time formats we may think about starting with the standard one
-    const wxChar *result = ParseFormat(time, _T("%X"));
+    // try all time formats we may think about in the order from longest to
+    // shortest
+
+    // 12hour with AM/PM?
+    const wxChar *result = ParseFormat(time, _T("%I:%M:%S %p"));
+
     if ( !result )
     {
         // normally, it's the same, but why not try it?
     if ( !result )
     {
         // normally, it's the same, but why not try it?
@@ -3402,8 +4178,8 @@ const wxChar *wxDateTime::ParseTime(const wxChar *time)
 
     if ( !result )
     {
 
     if ( !result )
     {
-        // 12hour with AM/PM?
-        result = ParseFormat(time, _T("%I:%M:%S %p"));
+        // 12hour with AM/PM but without seconds?
+        result = ParseFormat(time, _T("%I:%M %p"));
     }
 
     if ( !result )
     }
 
     if ( !result )
@@ -3414,8 +4190,8 @@ const wxChar *wxDateTime::ParseTime(const wxChar *time)
 
     if ( !result )
     {
 
     if ( !result )
     {
-        // 12hour with AM/PM but without seconds?
-        result = ParseFormat(time, _T("%I:%M %p"));
+        // just the hour and AM/PM?
+        result = ParseFormat(time, _T("%I %p"));
     }
 
     if ( !result )
     }
 
     if ( !result )
@@ -3426,8 +4202,9 @@ const wxChar *wxDateTime::ParseTime(const wxChar *time)
 
     if ( !result )
     {
 
     if ( !result )
     {
-        // just the hour and AM/PM?
-        result = ParseFormat(time, _T("%I %p"));
+        // parse the standard format: normally it is one of the formats above
+        // but it may be set to something completely different by the user
+        result = ParseFormat(time, _T("%X"));
     }
 
     // TODO: parse timezones
     }
 
     // TODO: parse timezones
@@ -3444,10 +4221,38 @@ bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const
     return !wxDateTimeHolidayAuthority::IsHoliday(*this);
 }
 
     return !wxDateTimeHolidayAuthority::IsHoliday(*this);
 }
 
+// ============================================================================
+// wxDateSpan
+// ============================================================================
+
+wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds)
+{
+    wxDateSpan ds1(ds);
+    return ds1.Multiply(n);
+}
+
 // ============================================================================
 // wxTimeSpan
 // ============================================================================
 
 // ============================================================================
 // wxTimeSpan
 // ============================================================================
 
+wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts)
+{
+    return wxTimeSpan(ts).Multiply(n);
+}
+
+// this enum is only used in wxTimeSpan::Format() below but we can't declare
+// it locally to the method as it provokes an internal compiler error in egcs
+// 2.91.60 when building with -O2
+enum TimeSpanPart
+{
+    Part_Week,
+    Part_Day,
+    Part_Hour,
+    Part_Min,
+    Part_Sec,
+    Part_MSec
+};
+
 // not all strftime(3) format specifiers make sense here because, for example,
 // a time span doesn't have a year nor a timezone
 //
 // not all strftime(3) format specifiers make sense here because, for example,
 // a time span doesn't have a year nor a timezone
 //
@@ -3466,18 +4271,41 @@ bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const
 //  %l          milliseconds (000 - 999)
 wxString wxTimeSpan::Format(const wxChar *format) const
 {
 //  %l          milliseconds (000 - 999)
 wxString wxTimeSpan::Format(const wxChar *format) const
 {
-    wxCHECK_MSG( format, _T(""), _T("NULL format in wxTimeSpan::Format") );
+    wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxTimeSpan::Format") );
 
     wxString str;
     str.Alloc(wxStrlen(format));
 
 
     wxString str;
     str.Alloc(wxStrlen(format));
 
+    // Suppose we have wxTimeSpan ts(1 /* hour */, 2 /* min */, 3 /* sec */)
+    //
+    // Then, of course, ts.Format("%H:%M:%S") must return "01:02:03", but the
+    // question is what should ts.Format("%S") do? The code here returns "3273"
+    // in this case (i.e. the total number of seconds, not just seconds % 60)
+    // because, for me, this call means "give me entire time interval in
+    // seconds" and not "give me the seconds part of the time interval"
+    //
+    // If we agree that it should behave like this, it is clear that the
+    // interpretation of each format specifier depends on the presence of the
+    // other format specs in the string: if there was "%H" before "%M", we
+    // should use GetMinutes() % 60, otherwise just GetMinutes() &c
+
+    // we remember the most important unit found so far
+    TimeSpanPart partBiggest = Part_MSec;
+
     for ( const wxChar *pch = format; *pch; pch++ )
     {
         wxChar ch = *pch;
 
         if ( ch == _T('%') )
         {
     for ( const wxChar *pch = format; *pch; pch++ )
     {
         wxChar ch = *pch;
 
         if ( ch == _T('%') )
         {
-            wxString tmp;
+            // the start of the format specification of the printf() below
+            wxString fmtPrefix(_T('%'));
+
+            // the number
+            long n;
+
+            // the number of digits for the format string, 0 if unused
+            unsigned digits = 0;
 
             ch = *++pch;    // get the format spec char
             switch ( ch )
 
             ch = *++pch;    // get the format spec char
             switch ( ch )
@@ -3487,44 +4315,115 @@ wxString wxTimeSpan::Format(const wxChar *format) const
                     // fall through
 
                 case _T('%'):
                     // fall through
 
                 case _T('%'):
-                    // will get to str << ch below
-                    break;
+                    str += ch;
+
+                    // skip the part below switch
+                    continue;
 
                 case _T('D'):
 
                 case _T('D'):
-                    tmp.Printf(_T("%d"), GetDays());
+                    n = GetDays();
+                    if ( partBiggest < Part_Day )
+                    {
+                        n %= DAYS_PER_WEEK;
+                    }
+                    else
+                    {
+                        partBiggest = Part_Day;
+                    }
                     break;
 
                 case _T('E'):
                     break;
 
                 case _T('E'):
-                    tmp.Printf(_T("%d"), GetWeeks());
+                    partBiggest = Part_Week;
+                    n = GetWeeks();
                     break;
 
                 case _T('H'):
                     break;
 
                 case _T('H'):
-                    tmp.Printf(_T("%02d"), GetHours());
+                    n = GetHours();
+                    if ( partBiggest < Part_Hour )
+                    {
+                        if ( n < 0 )
+                        {
+                            // the sign has already been taken into account
+                            // when outputting the biggest part
+                            n = -n;
+                        }
+
+                        n %= HOURS_PER_DAY;
+                    }
+                    else
+                    {
+                        partBiggest = Part_Hour;
+                    }
+
+                    digits = 2;
                     break;
 
                 case _T('l'):
                     break;
 
                 case _T('l'):
-                    tmp.Printf(_T("%03ld"), GetMilliseconds().ToLong());
+                    n = GetMilliseconds().ToLong();
+                    if ( partBiggest < Part_MSec )
+                    {
+                        if ( n < 0 )
+                            n = -n;
+
+                        n %= 1000;
+                    }
+                    //else: no need to reset partBiggest to Part_MSec, it is
+                    //      the least significant one anyhow
+
+                    digits = 3;
                     break;
 
                 case _T('M'):
                     break;
 
                 case _T('M'):
-                    tmp.Printf(_T("%02d"), GetMinutes());
+                    n = GetMinutes();
+                    if ( partBiggest < Part_Min )
+                    {
+                        if ( n < 0 )
+                            n = -n;
+
+                        n %= MIN_PER_HOUR;
+                    }
+                    else
+                    {
+                        partBiggest = Part_Min;
+                    }
+
+                    digits = 2;
                     break;
 
                 case _T('S'):
                     break;
 
                 case _T('S'):
-                    tmp.Printf(_T("%02ld"), GetSeconds().ToLong());
+                    n = GetSeconds().ToLong();
+                    if ( partBiggest < Part_Sec )
+                    {
+                        if ( n < 0 )
+                            n = -n;
+
+                        n %= SEC_PER_MIN;
+                    }
+                    else
+                    {
+                        partBiggest = Part_Sec;
+                    }
+
+                    digits = 2;
                     break;
             }
 
                     break;
             }
 
-            if ( !!tmp )
+            if ( digits )
             {
             {
-                str += tmp;
+                // negative numbers need one extra position for '-' display
+                if ( n < 0 )
+                    digits++;
 
 
-                // skip str += ch below
-                continue;
+                fmtPrefix << _T("0") << digits;
             }
             }
-        }
 
 
-        str += ch;
+            str += wxString::Format(fmtPrefix + _T("ld"), n);
+        }
+        else
+        {
+            // normal character, just copy
+            str += ch;
+        }
     }
 
     return str;
     }
 
     return str;
@@ -3536,7 +4435,7 @@ wxString wxTimeSpan::Format(const wxChar *format) const
 
 #include "wx/arrimpl.cpp"
 
 
 #include "wx/arrimpl.cpp"
 
-WX_DEFINE_OBJARRAY(wxDateTimeArray);
+WX_DEFINE_OBJARRAY(wxDateTimeArray)
 
 static int wxCMPFUNC_CONV
 wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second)
 
 static int wxCMPFUNC_CONV
 wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second)
@@ -3556,16 +4455,16 @@ wxHolidayAuthoritiesArray wxDateTimeHolidayAuthority::ms_authorities;
 /* static */
 bool wxDateTimeHolidayAuthority::IsHoliday(const wxDateTime& dt)
 {
 /* static */
 bool wxDateTimeHolidayAuthority::IsHoliday(const wxDateTime& dt)
 {
-    size_t count = ms_authorities.GetCount();
+    size_t count = ms_authorities.size();
     for ( size_t n = 0; n < count; n++ )
     {
         if ( ms_authorities[n]->DoIsHoliday(dt) )
         {
     for ( size_t n = 0; n < count; n++ )
     {
         if ( ms_authorities[n]->DoIsHoliday(dt) )
         {
-            return TRUE;
+            return true;
         }
     }
 
         }
     }
 
-    return FALSE;
+    return false;
 }
 
 /* static */
 }
 
 /* static */
@@ -3576,10 +4475,10 @@ wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart,
 {
     wxDateTimeArray hol;
 
 {
     wxDateTimeArray hol;
 
-    holidays.Empty();
+    holidays.Clear();
 
 
-    size_t count = ms_authorities.GetCount();
-    for ( size_t nAuth = 0; nAuth < count; nAuth++ )
+    const size_t countAuth = ms_authorities.size();
+    for ( size_t nAuth = 0; nAuth < countAuth; nAuth++ )
     {
         ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol);
 
     {
         ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol);
 
@@ -3588,7 +4487,7 @@ wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart,
 
     holidays.Sort(wxDateTimeCompareFunc);
 
 
     holidays.Sort(wxDateTimeCompareFunc);
 
-    return holidays.GetCount();
+    return holidays.size();
 }
 
 /* static */
 }
 
 /* static */
@@ -3600,7 +4499,12 @@ void wxDateTimeHolidayAuthority::ClearAllAuthorities()
 /* static */
 void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth)
 {
 /* static */
 void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth)
 {
-    ms_authorities.Add(auth);
+    ms_authorities.push_back(auth);
+}
+
+wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority()
+{
+    // required here for Darwin
 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------
@@ -3648,4 +4552,46 @@ size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart,
     return holidays.GetCount();
 }
 
     return holidays.GetCount();
 }
 
+// ============================================================================
+// other helper functions
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// iteration helpers: can be used to write a for loop over enum variable like
+// this:
+//  for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
+// ----------------------------------------------------------------------------
+
+WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m)
+{
+    wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") );
+
+    // no wrapping or the for loop above would never end!
+    m = (wxDateTime::Month)(m + 1);
+}
+
+WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m)
+{
+    wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") );
+
+    m = m == wxDateTime::Jan ? wxDateTime::Inv_Month
+                             : (wxDateTime::Month)(m - 1);
+}
+
+WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd)
+{
+    wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") );
+
+    // no wrapping or the for loop above would never end!
+    wd = (wxDateTime::WeekDay)(wd + 1);
+}
+
+WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd)
+{
+    wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") );
+
+    wd = wd == wxDateTime::Sun ? wxDateTime::Inv_WeekDay
+                               : (wxDateTime::WeekDay)(wd - 1);
+}
 
 
+#endif // wxUSE_DATETIME
wxWidgets (Impactor)