Format Time in AM-PM Format

1#include <stdio.h>
2#include <time.h>
3
4int main() {
5    time_t now;
6    struct tm *local;
7    
8    time(&now);
9    local = localtime(&now);
10    
11    int hour = local->tm_hour;
12    int min = local->tm_min;
13    int sec = local->tm_sec;
14    
15    char *period = (hour >= 12) ? "PM" : "AM";
16    int hour12 = hour % 12;
17    if (hour12 == 0) hour12 = 12;
18    
19    printf("24-hour format: %02d:%02d:%02d\n", hour, min, sec);
20    printf("12-hour format: %02d:%02d:%02d %s\n", hour12, min, sec, period);
21    
22    // Using strftime
23    char buffer[50];
24    strftime(buffer, sizeof(buffer), "%I:%M:%S %p", local);
25    printf("Using strftime: %s\n", buffer);
26    
27    return 0;
28}