#include <stdio.h>
#include <time.h>

int main(void) {
	char buf[256];
	
	time_t t1 = 61;
	struct tm *t2 = localtime(&t1);
	
	strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", t2);
	printf("Time is: %s\n", buf);
	return 0;
}