-char *asctime_r __P((const struct tm *, char *));
-char *ctime_r __P((const time_t *, char *));
-struct tm *gmtime_r __P((const time_t *, struct tm *));
-struct tm *localtime_r __P((const time_t *, struct tm *));
-char *strptime __P((const char *, const char *, struct tm *));
-char *timezone __P((int, int));
-void tzsetwall __P((void));
-time_t timelocal __P((struct tm * const));
-time_t timegm __P((struct tm * const));
+char *asctime_r(const struct tm *, char *);
+char *ctime_r(const time_t *, char *);
+struct tm *gmtime_r(const time_t *, struct tm *);
+struct tm *localtime_r(const time_t *, struct tm *);
+time_t posix2time(time_t);
+char *strptime(const char *, const char *, struct tm *);
+char *timezone(int, int);
+void tzsetwall(void);
+time_t time2posix(time_t);
+time_t timelocal(struct tm * const);
+time_t timegm(struct tm * const);