C# DateTime AddHours

Description

DateTime AddHours returns a new DateTime that adds the specified number of hours to the value of this instance.

Syntax

DateTime.AddHours has the following syntax.

public DateTime AddHours(
  double value
)

Parameters

DateTime.AddHours has the following parameters.

• value - A number of whole and fractional hours. The value parameter can be negative or positive.

Returns

DateTime.AddHours method returns An object whose value is the sum of the date and time represented by this instance and the number of hours represented by value.

Example

The following example uses the AddHours method to add a number of whole and fractional values to a date and time.

It also illustrates the loss of precision caused by passing the method a value that includes a fractional component.

/*from  w w w.j  av a  2  s  .co m*/
using System;

public class Example
{
   public static void Main()
   {
      DateTime dateValue = new DateTime(2009, 3, 1, 12, 0, 0);

      Console.WriteLine(dateValue.AddHours(1.3));

   }
}

The code above generates the following result.