This documentation is archived and is not being maintained.

DateTime.Equals Method (DateTime)

Updated: December 2010

Returns a value indicating whether this instance is equal to the specified DateTime instance.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public bool Equals(
	DateTime value


Type: System.DateTime

The object to compare to this instance.

Return Value

Type: System.Boolean
true if the value parameter equals the value of this instance; otherwise, false.



The current instance and value are equal if their Ticks property values are equal. Their Kind property values are not considered in the test for equality.

This method implements the System.IEquatable<T> interface, and performs slightly better than the Equals method because the value parameter does not have to be converted to an object.

The following example demonstrates the Equals method.

using System;

public class Application
    public static void Main()
        // Create some DateTime objects.
        DateTime one = DateTime.UtcNow;

        DateTime two = DateTime.Now;

        DateTime three = one;

        // Compare the DateTime objects and display the results. 
        bool result = one.Equals(two);

        Console.WriteLine("The result of comparing DateTime object one and two is: {0}.", result);

        result = one.Equals(three);

        Console.WriteLine("The result of comparing DateTime object one and three is: {0}.", result);

// This code example displays the following: 
// The result of comparing DateTime object one and two is: False. 
// The result of comparing DateTime object one and three is: True.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0




December 2010

Added a definition of date and time equality.

Customer feedback.