Example: Difference Between Two Time Periods in Java using LocalDateTime

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// DIFFERENCE BETWEEN TWO TIME PERIODS in Java using LocalDateTime
import java.time.LocalDateTime;
import java.time.temporal.ChronoUnit;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // Step-1 Create two LocalDateTime instances
        LocalDateTime time1 = LocalDateTime.of(2025, 5, 1, 10, 30, 0);
        LocalDateTime time2 = LocalDateTime.of(2025, 5, 9, 15, 45, 0);

        // Step-2 Calculate time difference
        long diffInSeconds = ChronoUnit.SECONDS.between(time1, time2);

        // Step-3 Convert to hours, minutes, seconds
        long hours = diffInSeconds / 3600;
        long minutes = (diffInSeconds % 3600) / 60;
        long seconds = diffInSeconds % 60;

        // Step-4 Print result
        System.out.println("\nTIME DIFFERENCE: " + hours + " HOURS, " + minutes + " MINUTES, " + seconds + " SECONDS");
    }
}