C# DateTime Subtraction(DateTime, TimeSpan)

Description

DateTime Subtraction(DateTime, TimeSpan) subtracts a specified time interval from a specified date and time and returns a new date and time.

Syntax

DateTime.Subtraction(DateTime, TimeSpan) has the following syntax.


public static DateTime operator -(
  DateTime d,
  TimeSpan t
)

Parameters

DateTime.Subtraction(DateTime, TimeSpan) has the following parameters.

d - The date and time value to subtract from.
t - The time interval to subtract.

Returns

DateTime.Subtraction(DateTime, TimeSpan) method returns An object whose value is the value of d minus the value of t.

Example

The following example demonstrates the Subtract method and the subtraction operator.


using System;//from w ww .  j  a va2 s .  c om
public class MainClass{
  public static void Main(String[] argv){  
            System.DateTime date1 = new System.DateTime(2014, 6, 3, 22, 15, 0);
      System.DateTime date2 = new System.DateTime(2014, 12, 6, 13, 2, 0);
      System.DateTime date3 = new System.DateTime(2014, 10, 12, 8, 42, 0);

      // diff1 gets 185 days, 14 hours, and 47 minutes.
      System.TimeSpan diff1 = date2.Subtract(date1);
            System.Console.WriteLine(diff1);

      // date4 gets 4/9/2014 5:55:00 PM.
      System.DateTime date4 = date3.Subtract(diff1);
            System.Console.WriteLine(date4);


      // diff2 gets 55 days 4 hours and 20 minutes.
      System.TimeSpan diff2 = date2 - date3;
            System.Console.WriteLine(diff2);

      // date5 gets 4/9/2014 5:55:00 PM.
      System.DateTime date5 = date1 - diff2;
            System.Console.WriteLine(date5);
  }
}

The code above generates the following result.