DateTime.Addition Operator (System)

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.NET Framework Class Library
DateTime.Addition Operator

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
Visual Basic
Public Shared Operator + ( _
	d As DateTime, _
	t As TimeSpan _
) As DateTime
C#
public static DateTime operator +(
	DateTime d,
	TimeSpan t
)
Visual C++
public:
static DateTime operator +(
	DateTime d, 
	TimeSpan t
)
F#
static let inline (+)
        d:DateTime * 
        t:TimeSpan  : DateTime

Parameters

d
Type: System.DateTime
The date and time value to add.
t
Type: System.TimeSpan
The time interval to add.

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 less than MinValue or greater than MaxValue.

Examples

The following example demonstrates the addition operator.

Visual Basic

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

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

result2 = dTime + tSpan
C#

			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;
Visual C++

System::DateTime dTime( 1980, 8, 5 );

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

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

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library
Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

DateTime Structure
System Namespace
TimeSpan
Ticks

Other Resources

Performing Arithmetic Operations with Dates and Times