Java Instant.toEpochMilli() Method with Examples

In this Java core tutorial we learn how to use the java.time.Instant.toEpochMilli() method to convert an Instant object into epoch milliseconds value in Java programming language.

How to use Instant.toEpochMilli() method

In Java program, with a given Instant object we can use Instant.toEpochMilli() method to convert it to an epoch milliseconds value which is the number of milliseconds from the epoch of 1970-01-01T00:00:00Z.

InstantToEpochMilliExample1.java

import java.time.Instant;

public class InstantToEpochMilliExample1 {
    public static void main(String... args) {
        Instant instant = Instant.parse("2022-07-11T08:00:30Z");

        long epochMilliseconds = instant.toEpochMilli();

        System.out.println(epochMilliseconds);
    }
}