#include <stdio.h>
#include <stdlib.h>
#include <sys/param.h>
int sec;
int min;
int hour;
int main() {
seco:
for(sec = 0; sec < 60; sec++) {
        system("clear");
        if(sec < 10) {
                printf("%d:%d:0%d\n", hour, min, sec); }
        else {
                printf("%d:%d:%d\n", hour, min,  sec); }
                        sleep(1);
if (hour > 24) {
hour = 0; }
if (min > 60) {
hour++;
min = 0; }//fi
}//rof

if (sec > 59 ) {
min++;
goto seco;  }//fi
}//niam
[lucer@archie c]$ cat neoclock.c
#include <stdio.h>
#include <stdlib.h>
#include <sys/param.h>
int sec;
int min;
int hour;
int main() {
seco:
for(sec = 0; sec < 60; sec++) {
        system("clear");
        if(sec < 10) {
                printf("%d:%d:0%d\n", hour, min, sec); }
        else {
                printf("%d:%d:%d\n", hour, min,  sec); }
                        sleep(1);
if (hour > 24) {
hour = 0; }
if (min > 60) {
hour++;
min = 0; }//fi
}//rof

if (sec > 59 ) {
min++;
goto seco;  }//fi
}//niam