Sourcecore/stdc/time.d
difftime(time_ttime1, time_ttime0);mktime(scope tm*timeptr);time(scope time_t*timer);asctime(scope const tm*timeptr);ctime(scope const time_t*timer);gmtime(scope const time_t*timer);localtime(scope const time_t*timer);strftime(scope char*s, size_tmaxsize, scope const char*format, scope const tm*timeptr);