Data and Time Functions:

Data and Time Functions:

clock_t clock(void)
time_t time(time_t , *tp
double difftime(time_t time2 , time_t time1)
time_t mktime(struct tm *tp)
char *asctime(const time_t *tp)
char *ctime(const time_t *tp)
struct tm *gmtime(const time_t *tp)
struct tm *localtime(const time_t *tp)
size_t strftime(char *s, size_t smax, const char *fmt, const struct tm *tp)