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| /* time example */#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;}
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