C Program to Set/Change the Current System Date

This program can be used to set the system date or to change the current system date.

#include <stdio.h>
#include <process.h>
#include <dos.h>

int main(void)
{
struct date reset;
struct date save_date;
getdate(&save_date);
printf("Original date:\n");
system("date");
reset.da_year = 2001;
reset.da_day = 1;
reset.da_mon = 1;
setdate(&reset);
printf("Date after setting:\n");
system("date");
setdate(&save_date);
printf("Back to original date:\n");
system("date");
return 0;
}