Clock

#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>

int main()
{
    int hour=0,sec=0,min=0,day=0;
    while(1)
    {
        if(sec==59)
        {
            min++;
            sec=0;
        }
        if(min==59)
        {
            hour++;
            min=0;
        }
        if(hour==24)
        {
            day++;
            hour=0;
        }
        sec++;
        printf("\n\n\n\t\t\t\tDIGITAL CLOCK\n\t\t\t\t  %d : %d : %d\n",hour,min,sec);
        sleep(1);
        system("clear");
    }
    return 0;
}