Java Calculate Number of Months Between two LocalDateTime

Tags: Java LocalDateTime ChronoUnit Java 8

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

How to get number of months between two LocalDateTime in Java

In Java, we can use the ChronoUnit.MONTHS.between() method to calculate the number of months between two LocalDateTime values as the example Java code below.

MonthsBetweenLocalDateTimeExample.java

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

public class MonthsBetweenLocalDateTimeExample {
    public static void main(String... args) {
        LocalDateTime start = LocalDateTime.parse("2020-01-01T08:30:00");
        LocalDateTime end = LocalDateTime.parse("2022-08-30T23:50:00");

        // Calculate Number of Months Between two LocalDateTime
        long numberOfMonths = ChronoUnit.MONTHS.between(start, end);

        System.out.println(String.format("Number of months between %s and %s is %d", start, end, numberOfMonths));
    }
}
The output as below.
Number of months between 2020-01-01T08:30 and 2022-08-30T23:50 is 31

Happy Coding 😊

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