time conversion for digital clock

clock.c

#include <stdio.h>
#include <stdbool.h>

int main() {
        //bool hours12 = false;
        bool hours12 = true;
        int hour, minute;
        scanf("%d%d", &hour, &minute);
        int currentTime = hour * 100 + minute;

        if (hours12) {
                if (currentTime > 1259) {
                        //printf("%d\n", currentTime - 1200);
                        printf("%02d:%02d\n", hour - 12, minute);
                } else {
                        //printf("%d\n", currentTime);
                        printf("%02d:%02d\n", hour, minute);
                }
        } else {
                //printf("%d\n", currentTime);
                printf("%02d:%02d\n", hour, minute);
        }

        return 0;
}

result

$ gcc clock.c
$ ./a.out
14 04
02:04

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