LocalTime toNanoOfDay() method in Java with Examples

The toNanoOfDay() method of LocalTime class is used to return the time as nanos of day from this LocalTime.Value returned by this method lie between 0 to 24 * 60 * 60 * 1, 000, 000, 000 – 1. 

Syntax:

public long toNanoOfDay()

Parameters: This method accepts no parameters. 

Return value: This method returns a long value which is the nano of day value and is equivalent to this time. 

Below programs illustrate the toNanoOfDay() method: 

Program 1:

Java

// Java program to demonstrate
// LocalTime.toNanoOfDay() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a LocalTime object
        LocalTime time
            = LocalTime.parse("19:34:50.63");

        // extract nano of day from toNanoOfDay()
        long value = time.toNanoOfDay();

        // print result
        System.out.println("Nano of day: "
                           + value);
    }
}

Output:

Nano of day: 70490630000000

Program 2:

Java

// Java program to demonstrate
// LocalTime.toNanoOfDay() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a LocalTime object
        LocalTime time
            = LocalTime.parse("23:21:45.98");

        // extract nano of day from toNanoOfDay()
        long value = time.toNanoOfDay();

        // print result
        System.out.println("Nano of day: "
                           + value);
    }
}

Output:

Nano of day: 84105980000000

Reference: https://docs.oracle.com/javase/10/docs/api/java/time/LocalTime.html#toNanoOfDay()