Instant plusMillis() method in Java

An immutable copy of a instant where some milliseconds are added to it can be obtained using the plusMillis() method in the Instant class in Java. This method requires a single parameter i.e. the number of milliseconds to be added and it returns the instant with the added milliseconds.

A program that demonstrates this is given as follows −

Example

 Live Demo

import java.time.*;
public class Demo {
   public static void main(String[] args) {
      Instant i = Instant.now();
      System.out.println("The current instant is: " + i);
      System.out.println("An instant with 60000 milliseconds added is: " + i.plusMillis(60000));
   }
}

Output

The current instant is: 2019-02-12T12:17:52.088Z
An instant with 60000 milliseconds added is: 2019-02-12T12:18:52.088Z

Now let us understand the above program.

First the current instant is displayed. Then an immutable copy of the instant where 60000 milliseconds are added is obtained using the plusMillis() method and this is displayed. A code snippet that demonstrates this is as follows −

Instant i = Instant.now();
System.out.println("The current instant is: " + i);
System.out.println("An instant with 60000 milliseconds added is: " + i.plusMillis(60000));