On Time For The Exam

import java.util.Scanner;

public class OnTimeForTheExam {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int examHour = Integer.parseInt(scanner.nextLine());
        int examMin = Integer.parseInt(scanner.nextLine());
        int arriveHour = Integer.parseInt(scanner.nextLine());
        int arriveMin = Integer.parseInt(scanner.nextLine());

        int differenceTotalMin = (arriveHour * 60 + arriveMin) - (examHour * 60 + examMin);
        int differenceHours = Math.abs(differenceTotalMin / 60);
        int differenceMin = Math.abs(differenceTotalMin % 60);

        if (differenceTotalMin > 0) {
            System.out.println("Late");

        } else if (differenceTotalMin >= -30) {
            System.out.println("On time");

        } else {
            System.out.println("Early");

        }
        if (differenceTotalMin >= 60) {
            System.out.printf("%d:%02d hours after the start", differenceHours, differenceMin);

        } else if (differenceTotalMin > 0) {
            System.out.printf("%d minutes after the start", differenceMin);

        }
        if (differenceTotalMin <= -60) {
            System.out.printf("%d:%02d hours before the start", differenceHours, differenceMin);

        } else if (differenceTotalMin < 0) {
            System.out.printf("%d minutes before the start", differenceMin);

        }
    }
}