How to Compare Time in Java

LocalTime class provides below APIs to compare LocalTime objects in Java.

• int compareTo(LocalTime other) - Compares this time to another time.
• boolean isAfter(LocalTime other) - Checks if this time is after the specified time.
• boolean isBefore(LocalTime other) - Checks if this time is before the specified time.

import java.time.LocalTime;

/**
 * Program to demonstrate LocalTime Class APIs.
 * @author javaguides.net
 *
 */
public class LocalTimeExample {
 
    public static void main(String[] args) {
        compareLocalTimeObjects();
    }

    private static void compareLocalTimeObjects() {
        LocalTime localTime1 = LocalTime.of(9, 10, 50);
        LocalTime localTime2 = LocalTime.of(9, 10, 50);
        LocalTime localTime3 = LocalTime.of(11, 45, 20);
  
        // compareTo() example
        if (localTime1.compareTo(localTime2) == 0) {
            System.out.println("localTime1 and localTime2 are equal");
        } else {
            System.out.println("localTime1 and localTime2 are not equal");
        }

        // isBefore() example
        if (localTime2.isBefore(localTime3)) {
             System.out.println("localTime2 comes before localTime3");
        }

        // isAfter() example
        if (localTime3.isAfter(localTime1)) {
            System.out.println("localTime3 comes after localTime1");
        }
    }
}

Output:

localTime1 and localTime2 are equal
localTime2 comes before localTime3
localTime3 comes after localTime1