DateTimeOffset.AddMilliseconds() Method in C#

The DateTimeOffset.AddMilliseconds() method in C# is used to return a new DateTimeOffset object that adds a specified number of milliseconds to the value of this instance.

Syntax

Following is the syntax −

public DateTimeOffset AddMilliseconds (double val);

Above, Val are the milliseconds to be added. To subtract, set a negative value.

Example

Let us now see an example to implement the DateTimeOffset.AddMilliseconds() method −

using System;
public class Demo {
   public static void Main() {
      DateTimeOffset dateTimeOffset = new DateTimeOffset(2019, 08, 10, 4, 20, 10, new TimeSpan(-5, 0, 0));
      Console.WriteLine("DateTimeOffset (before adding milliseconds) = {0}", dateTimeOffset);
      DateTimeOffset res = dateTimeOffset.AddMilliseconds(3000);
      Console.WriteLine("DateTimeOffset (after adding milliseconds) = {0}", res);
   }
}

Output

This will produce the following output −

DateTimeOffset (before adding milliseconds) = 8/10/2019 4:20:10 AM -05:00
DateTimeOffset (after adding milliseconds) = 8/10/2019 4:20:13 AM -05:00

Example

Let us now see another example to implement the DateTimeOffset.AddMilliseconds() method −

using System;
public class Demo {
   public static void Main() {
      DateTimeOffset dateTimeOffset = new DateTimeOffset(2019, 08, 10, 4, 20, 10, new TimeSpan(-5, 0, 0));
      Console.WriteLine("DateTimeOffset (before subtracting milliseconds) = {0}", dateTimeOffset);
      DateTimeOffset res = dateTimeOffset.AddMilliseconds(-2000);
      Console.WriteLine("DateTimeOffset (after subtracting milliseconds) = {0}", res);
   }
}

Output

This will produce the following output −

DateTimeOffset (before subtracting milliseconds) = 8/10/2019 4:20:10 AM -05:00
DateTimeOffset (after subtracting milliseconds) = 8/10/2019 4:20:08 AM -05:00