Example: Calculate the Difference Between Two Time Periods in Java Using LocalDateTime

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

public class Main {

    public static void main(String[] args) {

        // Step-1 Define two LocalDateTime objects
        LocalDateTime startTime = LocalDateTime.of(2025, 5, 1, 10, 30, 0);
        LocalDateTime endTime = LocalDateTime.of(2025, 5, 9, 15, 45, 0);

        // Step-2 Calculate duration between the two time periods
        Duration duration = Duration.between(startTime, endTime);

        // Step-3 Extract hours, minutes, and seconds from the duration
        long totalSeconds = duration.getSeconds();
        long hours = totalSeconds / 3600;
        long minutes = (totalSeconds % 3600) / 60;
        long seconds = totalSeconds % 60;

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