On Time for the Exam

package com.company;

        import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        int examHour = Integer.parseInt(scanner.nextLine());
        int examMinute = Integer.parseInt(scanner.nextLine());
        int arriveHour = Integer.parseInt(scanner.nextLine());
        int arriveMinute = Integer.parseInt(scanner.nextLine());
        int arriveTime = arriveHour * 60 + arriveMinute;
        int examTime = examHour * 60 + examMinute;
        int hours = 0;
        if (arriveTime > examTime) {
            int minutes = arriveTime - examTime;
            if (minutes >= 60) {
                hours = minutes / 60;
                minutes = minutes - 60 * hours;
                if (minutes < 10) {
                    System.out.printf("Late%n%d:0%d hours after the start", hours, minutes);
                } else {
                    System.out.printf("Late%n%d:%d hours after the start", hours, minutes);
                }
            } else {
                System.out.printf("Late%n%d minutes after the start", minutes);
            }
        } else if (examTime - arriveTime <= 30) {
            int minutes = examTime - arriveTime;
            System.out.printf("On time%n%d minutes before the start", minutes);
        } else {
            int minutes = examTime - arriveTime;
            if (minutes >= 60) {
                hours = minutes / 60;
                minutes = minutes - 60 * hours;
                if (minutes < 10) {
                    System.out.printf("Early%n%d:0%d hours before the start", hours, minutes);
                } else {
                    System.out.printf("Early%n%d:%d hours before the start", hours, minutes);
                }
            } else {
                System.out.printf("Early%n%d minutes before the start", minutes);
            }
        }

    }
}