Java Calculate Number of Weeks Between two LocalDateTime

Tags: Java LocalDateTime ChronoUnit Java 8

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

How to get number of weeks between LocalDateTime in Java

In Java, we can use the ChronoUnit.WEEKS.between() method to calculate the number of weeks between two LocalDateTime values as the following example Java code.

WeeksBetweenLocalDateTimeExample.java

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

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

        // Calculate Number of Weeks Between two LocalDateTime
        long numberOfWeeks = ChronoUnit.WEEKS.between(start, end);

        System.out.println(String.format("Number of weeks between %s and %s is %d", start, end, numberOfWeeks));
    }
}
The output as below.
Number of weeks between 2022-08-01T08:30 and 2022-08-30T23:50 is 4

Happy Coding 😊

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