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LocalDateTime plusHours() method in Java with Examples

  • Last Updated : 30 Nov, 2018

The plusHours() method of LocalDateTime class is used to return a copy of this date-time with the specified hours added.

Syntax:

public LocalDateTime plusHours(long hours)

Parameter: It accepts a single parameter hours which specifies the hours to add which may be negative.

Return Value: This method returns a LocalDateTime based on this date-time with the hours added.

Exceptions: The programs throws a DateTimeException which is thrown if the result exceeds the supported hours range.



Below programs illustrate the YearMonth.plusHours() method in Java:

Program 1:




// Program to illustrate the plusHours() method
  
import java.util.*;
import java.time.*;
  
public class GfG {
    public static void main(String[] args)
    {
        LocalDateTime dt1
            = LocalDateTime
                  .parse("2018-01-11T10:15:30");
  
        System.out.println("LocalDateTime with 15 hours added: "
                           + dt1.plusHours(15));
    }
}
Output:
LocalDateTime with 15 hours added: 2018-01-12T01:15:30

Program 2:




// Program to illustrate the plusHours() method
  
import java.util.*;
import java.time.*;
  
public class GfG {
    public static void main(String[] args)
    {
        LocalDateTime dt1
            = LocalDateTime
                  .parse("2018-01-11T08:15:30");
  
        System.out.println("LocalDateTime with -2 hours added: "
                           + dt1.plusHours(-2));
    }
}
Output:
LocalDateTime with -2 hours added: 2018-01-11T06:15:30

Reference: https://docs.oracle.com/javase/10/docs/api/java/time/LocalDateTime.html#plusHours(long)

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