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DateTime.SpecifyKind Method

Updated: September 2009

Creates a new DateTime object that has the same number of ticks as the specified DateTime, but is designated as either local time, Coordinated Universal Time (UTC), or neither, as indicated by the specified DateTimeKind value.

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

public static function SpecifyKind(
	value : DateTime, 
	kind : DateTimeKind
) : DateTime


Type: System.DateTime

A DateTime object.

Type: System.DateTimeKind

One of the DateTimeKind values.

Return Value

Type: System.DateTime
A new object that has the same number of ticks as the object represented by the value parameter and the DateTimeKind value specified by the kind parameter.

A DateTime object consists of a Kind field that indicates whether the time value is based on local time, Coordinated Universal Time (UTC), or neither, and a Ticks field that contains a time value measured in 100-nanosecond ticks. The SpecifyKind method creates a new DateTime object using the specified kind parameter and the original time value.

Important noteImportant Note:

The returned DateTime value does not represent the same instant in time as the value parameter, and SpecifyKind is not a time zone conversion method. Instead, it leaves the time specified by the value parameter unchanged, and sets the Kind property to kind. For information about time zone conversions, see Converting Times Between Time Zones.

The SpecifyKind method is useful in interoperability scenarios where you receive a DateTime object with an unspecified Kind field, but you can determine by independent means that the Ticks field represents local time or UTC.

The following example uses the SpecifyKind method to demonstrate how the Kind property influences the ToLocalTime and ToUniversalTime conversion methods.

No code example is currently available or this language may not be supported.

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




September 2009

Modified the description and added a note to the Remarks section.

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