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DateTimeOffset.AddSeconds Method

.NET Framework 4.5

Adds a specified number of whole and fractional seconds to the current DateTimeOffset object.

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

'Declaration
Public Function AddSeconds ( _
	seconds As Double _
) As DateTimeOffset

Parameters

seconds: Type: System.Double
A number of whole and fractional seconds. The number can be negative or positive.

Return Value

Type: System.DateTimeOffset
An object whose value is the sum of the date and time represented by the current DateTimeOffset object and the number of seconds represented by seconds.

Exceptions

Exception	Condition
ArgumentOutOfRangeException	The resulting DateTimeOffset value is less than MinValue. -or- The resulting DateTimeOffset value is greater than MaxValue.

Exception

Condition

ArgumentOutOfRangeException

The resulting DateTimeOffset value is less than MinValue.

-or-

The resulting DateTimeOffset value is greater than MaxValue.

Remarks

The fractional part of the seconds parameter is the fractional part of a second. The value of fractional parts of a second are shown in the following table.

Second value	Equivalent
.1 second	100 milliseconds
.01 second	10 milliseconds
.001 second	1 millisecond

The seconds parameter is rounded to the nearest millisecond.

Note
This method returns a new DateTimeOffset object. It does not modify the value of the current object by adding minutes to its date and time.

Because a DateTimeOffset object does not represent the date and time in a specific time zone, the AddSeconds method does not consider a particular time zone's adjustment rules when it performs date and time arithmetic.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5 SP1, 3.0 SP1, 2.0 SP1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference

DateTimeOffset Structure

System Namespace

Other Resources

Performing Arithmetic Operations with Dates and Times

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