How can i use time.h studio can you explain with an example?

Answer 1

#include <stdio.h> /* printf */
#include <time.h> /* time_t, struct tm, difftime, time, mktime */

int main ()
{
time_t timer;
struct tm y2k = {0};
double seconds;

y2k.tm_hour = 0; y2k.tm_min = 0; y2k.tm_sec = 0;
y2k.tm_year = 100; y2k.tm_mon = 0; y2k.tm_mday = 1;

time(&timer); /* get current time; same as: timer = time(NULL) */

seconds = difftime(timer,mktime(&y2k));

printf ("%.f seconds since January 1, 2000 in the current timezone", seconds);

return 0;
}