Conditional statement Time+15minute

import java.util.Scanner;

public class TimeMinutes {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int startHour = Integer.parseInt(scanner.nextLine());
        int startMinutes = Integer.parseInt(scanner.nextLine());

        int timeInMinutes = startHour * 60 + startMinutes + 15;
        int outHours = timeInMinutes / 60;
        int outMins = timeInMinutes % 60;

        if (outHours >= 24) {
            outHours = 0;
        }

        if (outMins < 10) {
            System.out.printf("%d:0%d", outHours, outMins);
        } else {
            System.out.printf("%d:%d", outHours, outMins);
        }
    }
}