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DateTime.AddSeconds Method

Returns a new DateTime that adds the specified number of seconds to the value of this instance.

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

public function AddSeconds(
	value : double
) : DateTime

Parameters

value
Type: System.Double

A number of whole and fractional seconds. The value parameter can be negative or positive.

Return Value

Type: System.DateTime
A DateTime whose value is the sum of the date and time represented by this instance and the number of seconds represented by value.

ExceptionCondition
ArgumentOutOfRangeException

The resulting DateTime is less than MinValue or greater than MaxValue.

This method does not change the value of this DateTime. Instead, a new DateTime is returned whose value is the result of this operation.

The fractional part of value is the fractional part of a second. For example, 4.5 is equivalent to 4 seconds, 500 milliseconds, and 0 ticks.

The value parameter is rounded to the nearest millisecond.

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, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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