1: /*
   2:  * loc_time.h - some local definitions
   3:  */
   4: /* $Header: loc_time.h,v 1.1 91/04/22 13:19:51 ceriel Exp $ */
   5: 
   6: #define YEAR0           1900                    /* the first year */
   7: #define EPOCH_YR        1970            /* EPOCH = Jan 1 1970 00:00:00 */
   8: #define SECS_DAY        (24L * 60L * 60L)
   9: #define LEAPYEAR(year)  (!((year) % 4) && (((year) % 100) || !((year) % 400)))
  10: #define YEARSIZE(year)  (LEAPYEAR(year) ? 366 : 365)
  11: #define FIRSTSUNDAY(timp)       (((timp)->tm_yday - (timp)->tm_wday + 420) % 7)
  12: #define FIRSTDAYOF(timp)        (((timp)->tm_wday - (timp)->tm_yday + 420) % 7)
  13: #define TIME_MAX        ULONG_MAX
  14: #define ABB_LEN         3
  15: 
  16: extern const int _ytab[][];
  17: extern const char *_days[];
  18: extern const char *_months[];
  19: 
  20: void _tzset(void);
  21: unsigned _dstget(struct tm *timep);
  22: 
  23: extern long _timezone;
  24: extern long _dst_off;
  25: extern int _daylight;
  26: extern char *_tzname[];