The getNano() method of Instant class is used to return the number of nanoseconds later in the time-line represented in this instant, from the start of the second. The nanosecond-of-second value which measures the total number of nanoseconds from the second value returned by getEpochSecond(). Syntax:
public int getNano()
Returns: This method returns the nanoseconds within the second value which is always positive and never exceeds 999, 999, 999. Below programs illustrate the getNano() method: Program 1:Â
Java
// Java program to demonstrate// Instant.getNano() methodÂ
import java.time.*;Â
public class GFG {Â Â Â Â public static void main(String[] args)Â Â Â Â {Â
        // create a Instant object        Instant instant            = Instant.parse("2018-12-30T19:34:50.63Z");Â
        // get nano second of secondvalue        // using getNano()        int value = instant.getNano();Â
        // print result        System.out.println("nanoseconds value: "                           + value);    }} |
Output:
nanoseconds value: 630000000
Program 2:Â
Java
// Java program to demonstrate// Instant.getNano() methodÂ
import java.time.*;Â
public class GFG {Â Â Â Â public static void main(String[] args)Â Â Â Â {Â
        // create a Instant object        Instant instant = Instant.now();Â
        // current Instant        System.out.println("Current Instant:"                           + instant);Â
        // get nano second of secondvalue        // using getNano()        int value = instant.getNano();Â
        // print result        System.out.println("nanoseconds value: "                           + value);    }} |
Output:
Current Instant:2018-11-27T04:21:27.029Z nanoseconds value: 29000000
References: https://docs.oracle.com/javase/10/docs/api/java/time/Instant.html#getNano()
