Duration minusHours(long) method in Java with Examples

Last Updated : 29 Aug, 2021

The minusHours(long) method of Duration Class in java.time package is used to get an immutable copy of this duration with the specified number of hours subtracted, passed as the parameter.
Syntax:

public Duration minusHours(long numberOfHours)

Parameters: This method accepts a parameter numberOfHours which is the number of hours to be subtracted. It can be positive or negative but not null.
Return Value: This method returns a Duration which is an immutable copy of the existing duration with the parameter amount of hours subtracted to it.
Exception: This method throws ArithmeticException if numeric overflow occurs.
Below examples illustrate the Duration.minusHours() method:
Example 1:

Java

// Java code to illustrate minusHours() method
 
import java.time.Duration;
 
public class GFG {
    public static void main(String[] args)
    {
 
        // Duration 1 using parse() method
        Duration duration1
            = Duration.parse("P2DT3H4M");
 
        // Get the duration subtracted
        // using minusHours() method
        System.out.println(duration1'=
                               .minusHours(2));
    }
}

Output:

PT49H4M

Example 2:

Java

// Java code to illustrate minusHours() method
 
import java.time.Duration;
 
public class GFG {
    public static void main(String[] args)
    {
 
        // Duration 1 using parse() method
        Duration duration1
            = Duration.parse("P0DT0H4M");
 
        // Get the duration subtracted
        // using minusHours() method
        System.out.println(duration1
                               .minusHours(5));
    }
}