C/time.h/localtime
localtime: returns local time
//Declaration: struct tm *localtime(const time_t *time);
#include <time.h>
#include <stdio.h>
/* Print local and UTC time. */
int main(void)
{
struct tm *local;
time_t t;
t = time(NULL);
local = localtime(&t);
printf("Local time and date: %s\n", asctime(local));
local = gmtime(&t);
printf("UTC time and date: %s\n", asctime(local));
return 0;
}
/*
Local time and date: Sat Mar 3 16:12:47 2007
UTC time and date: Sat Mar 3 16:12:47 2007
*/