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DateTime.AddDays() Method in C#
The DateTime.AddDays() method in C# is used to add the specified number of days to the value of this instance. This method returns a new DateTime.
Syntax
Following is the syntax −
public DateTime AddDays (double days);
Above, the parameter days are the number of days to be added. To subtract, add a negative value.
Example
Let us now see an example to implement the DateTime.AddDays() method −
using System;
public class Demo {
public static void Main(){
DateTime d1 = new DateTime(2019, 11, 2, 8, 0, 15);
DateTime d2 = d1.AddDays(25);
System.Console.WriteLine("Initial DateTime = {0:y} {0:dd}", d1);
System.Console.WriteLine("
New DateTime (After adding days) = {0:y} {0:dd}", d2);
}
}Output
This will produce the following output −
Initial DateTime = November 2019 02 New DateTime (After adding days) = November 2019 27
Example
Let us now see another example to implement the DateTime.AddDays() method −
using System;
public class Demo {
public static void Main(){
DateTime d1 = DateTime.MinValue;
DateTime d2 = d1.AddDays(150);
System.Console.WriteLine("Initial DateTime = {0:y} {0:dd}", d1);
System.Console.WriteLine("
New DateTime (After adding days) = {0:y} {0:dd}", d2);
}
}Output
This will produce the following output −
Initial DateTime = January 0001 01 New DateTime (After adding days) = May 0001 31
Updated on: 06-Nov-2019
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