LocalTime plusHours() method in Java with Examples

Last Updated : 4 Dec, 2018
The plusHours() method of LocalTime class is used to add specified no of Hours value to this LocalTime and return the result as a LocalTime object. This instant is immutable. The calculation wraps around midnight. Syntax:
public LocalTime plusHours(long hoursToAdd)
Parameters: This method accepts a single parameter hoursToAdd which is the value of hours to be added, it can be a negative value. Return value: This method returns a LocalTime based on this time with the hours added. Below programs illustrate the plusHours() method: Program 1: Java
// Java program to demonstrate
// LocalTime.plusHours() 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");

        // print LocalTime
        System.out.println("LocalTime before addition : "
                           + time);

        // added 3 hours using plusHours()
        LocalTime value = time.plusHours(3);

        // print result
        System.out.println("LocalTime after addition : "
                           + value);
    }
}
Output:
LocalTime before addition : 19:34:50.630
LocalTime after addition : 22:34:50.630
Program 2: Java
// Java program to demonstrate
// LocalTime.plusHours() method

import java.time.*;

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

        // create a LocalTime object
        LocalTime time
            = LocalTime.parse("01:00:01");

        // print LocalTime
        System.out.println("LocalTime before addition : "
                           + time);

        // added -10 hours using plusHours()
        LocalTime value = time.plusHours(-10);

        // print result
        System.out.println("LocalTime after addition : "
                           + value);
    }
}
Output:
LocalTime before addition : 01:00:01
LocalTime after addition : 15:00:01
References: https://docs.oracle.com/javase/10/docs/api/java/time/LocalTime.html#plusHours(long)
Comment