Java Convert Instant to Epoch Milliseconds

In this Java core tutorial we learn how to convert a java.time.Instant object into an epoch milliseconds value in Java programming language.

How to convert Instant to Epoch Milliseconds in Java

In Java, with a given Instant object we can use the Instant.toEpochMilli() to return epoch milliseconds value which is the number of milliseconds from the epoch of 1970-01-01T00:00:00Z as the following example Java code.

ConvertInstantToEpochMillisecondsExample1.java

import java.time.Instant;

public class ConvertInstantToEpochMillisecondsExample1 {
    public static void main(String... args) {
        Instant instant = Instant.parse("2022-05-10T07:30:30.839996400Z");

        long epochMilliseconds = instant.toEpochMilli();

        System.out.println("Instant: " + instant);
        System.out.println("Epoch Milliseconds: " + epochMilliseconds);
    }
}

Instant: 2022-05-10T07:30:30.839996400Z
Epoch Milliseconds: 1652167830839

Happy Coding 😊

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