How to add hours, minutes, seconds into DateTime in Joda Time?

In this example you’ll learn how to add some hours, minutes or seconds into the DateTime object in Joda Time. Some couple methods available to plus or minus some hours, minutes or seconds from the object, as you can see in the example below.

The DateTime object is an immutable object, which means calling one of the plus or minus method does not modified the current object. Instead, these method return a new DateTime object for each method calls.

package org.kodejava.example.joda;

import org.joda.time.DateTime;

public class TimeCalculationDemo {
    public static void main(String[] args) {
        // Creates an instance of current DateTime which represents the
        // current date time.
        DateTime dateTime = new DateTime();
        System.out.println("DateTime = " + dateTime);

        // Plus some hours, minutes, and seconds to the original DateTime.
        System.out.println("Plus 1 hour is " + dateTime.plusHours(1));
        System.out.println("Plus 10 minutes is " + dateTime.plusMinutes(10));
        System.out.println("Plus 60 seconds is " + dateTime.plusSeconds(60));

        // Minus some hours, minutes, and seconds to the original DateTime.
        System.out.println("Minus 1 hour is " + dateTime.minusHours(1));
        System.out.println("Minus 10 minutes is " + dateTime.minusMinutes(10));
        System.out.println("Minus 60 seconds is " + dateTime.minusSeconds(60));

The program print the following result:

DateTime = 2012-07-27T12:08:46.048+08:00
Plus 1 hour is 2012-07-27T13:08:46.048+08:00
Plus 10 minutes is 2012-07-27T12:18:46.048+08:00
Plus 60 seconds is 2012-07-27T12:09:46.048+08:00
Minus 1 hour is 2012-07-27T11:08:46.048+08:00
Minus 10 minutes is 2012-07-27T11:58:46.048+08:00
Minus 60 seconds is 2012-07-27T12:07:46.048+08:00

Wayan Saryada

A programmer, runner, recreational diver, currently living in the island of Bali, Indonesia. Mostly programming in Java, creating web based application with Spring Framework, JPA, etc. If you need help on Java programming you can hire me on Fiverr.

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