Java Calculate Number of Seconds Between two LocalDateTime

Tags: Java LocalDateTime ChronoUnit Java 8

In this Java core tutorial, we learn how to calculate the number of seconds between two LocalDateTime objects using the java.time.temporal.ChronoUnit class in Java programming language.

How to get number of seconds between two LocalDateTime in Java

In Java, we can use the ChronoUnit.SECONDS.between() to calculate the number of seconds between two LocalDateTime values as the following Java program.

SecondsBetweenLocalDateTimeExample.java

import java.time.LocalDateTime;
import java.time.temporal.ChronoUnit;

public class SecondsBetweenLocalDateTimeExample {
    public static void main(String... args) {
        LocalDateTime start = LocalDateTime.parse("2022-07-11T08:30:00");
        LocalDateTime end = LocalDateTime.parse("2022-07-11T09:30:00");

        // Calculate Number of Seconds Between two LocalDateTime
        long numberOfSeconds = ChronoUnit.SECONDS.between(start, end);

        System.out.println(String.format("Number of seconds between %s and %s is %d", start, end, numberOfSeconds));
    }
}
The output as below.
Number of seconds between 2022-07-11T08:30 and 2022-07-11T09:30 is 3600

Happy Coding 😊

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