There are 3 main classes declared in {\tt <wx/datetime.h>}: except
\helpref{wxDateTime}{wxdatetime} itself which represents an absolute
moment in time, there are also two classes -
-\helpref{wxTimeSpan}{wxtimespan} and \helpref{wxDateSpan}{wxdatespan} which
+\helpref{wxTimeSpan}{wxtimespan} and \helpref{wxDateSpan}{wxdatespan} - which
represent the intervals of time.
There are also helper classes which are used together with wxDateTime:
To do it, you will need to call \helpref{ToTimezone}{wxdatetimetotimezone} or
\helpref{MakeTimezone}{wxdatetimemaketimezone} methods to adjust the date for
the target time zone. There are also special versions of these functions
-\helpref{ToGMT}{wxdatetimetogmt} and \helpref{MakeGMT}{wxdatetimemakegmt} for
-the most common case - when the date should be constructed in GMT.
+\helpref{ToUTC}{wxdatetimetoutc} and \helpref{MakeUTC}{wxdatetimemakeutc} for
+the most common case - when the date should be constructed in UTC.
You also can just retrieve the value for some time zone without converting the
object to it first. For this you may pass TimeZone argument to any of the