Java Calculate Number of Nanoseconds Between two Instant

Tags: Java Instant ChronoUnit Java 8

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

How to get number of nanoseconds between two Instant in Java

In Java, we can use the ChronoUnit.NANOS.between() method to calculate the number of nanoseconds between two Instant values as the example Java code below.

NanosecondsBetweenInstantExample.java

import java.time.Instant;
import java.time.temporal.ChronoUnit;

public class NanosecondsBetweenInstantExample {
    public static void main(String... args) {
        Instant startInstant = Instant.parse("2022-08-13T12:00:00.0Z");
        Instant endInstant = Instant.parse("2022-08-13T12:02:30.0Z");

        // Calculate Number of Nanoseconds Between two Instant
        long numberOfNanoseconds = ChronoUnit.NANOS.between(startInstant, endInstant);

        System.out.println(String.format("Number of nanoseconds between %s and %s is %d", startInstant, endInstant, numberOfNanoseconds));
    }
}
The output as below.
Number of nanoseconds between 2022-08-13T12:00:00Z and 2022-08-13T12:02:30Z is 150000000000

Happy Coding 😊

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