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Returns the calendar-time equivalent of the broken-down time

//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 = 2012-1900; 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; } /* Wed Jan 3 00:00:01 2012 */