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DateTime.Addition Operator

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Adds a specified time interval to a specified date and time, yielding a new date and time.

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

Syntax

'Declaration
Public Shared Operator + ( _
    d As DateTime, _
    t As TimeSpan _
) As DateTime
public static DateTime operator +(
    DateTime d,
    TimeSpan t
)

Parameters

Return Value

Type: System.DateTime
An object that is the sum of the values of d and t.

Exceptions

Exception Condition
ArgumentOutOfRangeException

The resulting DateTime is earlier than DateTime.MinValue or later than DateTime.MaxValue.

Examples

The following example demonstrates the addition operator.

Dim dTime As Date = #8/5/1980#

' tSpan is 17 days, 4 hours, 2 minutes and 1 second.
Dim tSpan As New TimeSpan(17, 4, 2, 1)

Dim result1, result2 As Date

' result1 and result2 get 8/22/1980 4:02:01 AM.
result1 = Date.op_Addition(dTime, tSpan)

result2 = dTime + tSpan
System.DateTime dTime = new System.DateTime(1980, 8, 5);

// tSpan is 17 days, 4 hours, 2 minutes and 1 second.
System.TimeSpan tSpan
   = new System.TimeSpan(17, 4, 2, 1);

// Result gets 8/22/1980 4:02:01 AM.
System.DateTime result = dTime + tSpan;

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.