C/time.h/mktime

mktime: returns the calendar-time equivalent of the broken-down time

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//Declaration: time_t mktime(struct tm *time);

 #include <time.h>
 #include <stdio.h>
 int main(void)
 {
   struct tm t;
   time_t t_of_day;
   t.tm_year = 2005-1900;
   t.tm_mon = 0;
   t.tm_mday = 3;
   t.tm_hour = 0;  /* hour, min, sec don"t matter */
   t.tm_min = 0;   /* as long as they don"t cause a */
   t.tm_sec = 1;   /* new day to occur */
   t.tm_isdst = 0;
   t_of_day = mktime(&t);
   printf(ctime(&t_of_day));
   return 0;
 }
        

/* Mon Jan 3 00:00:01 2005

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