Subtraction Operator (DateTime, TimeSpan)
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DateTime.Subtraction Operator (DateTime, TimeSpan)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Subtracts a specified time interval from a specified date and time and returns a new date and time.

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

'Declaration
Public Shared Operator - ( _
	d As DateTime, _
	t As TimeSpan _
) As DateTime

Parameters

d
Type: System.DateTime
The date and time value to subtract from (the minuend).
t
Type: System.TimeSpan
The time interval to subtract (the subtrahend).

Return Value

Type: System.DateTime
An object whose value is the value of d minus the value of t.

ExceptionCondition
ArgumentOutOfRangeException

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

This method subtracts the ticks value of t from the ticks value of d.

The following example demonstrates the Subtract method and the subtraction operator.


Dim date1 As New System.DateTime(1996, 6, 3, 22, 15, 0)
Dim date2 As New System.DateTime(1996, 12, 6, 13, 2, 0)
Dim date3 As New System.DateTime(1996, 10, 12, 8, 42, 0)

Dim diff1 As System.TimeSpan
' diff1 gets 185 days, 14 hours, and 47 minutes.
diff1 = date2.Subtract(date1)

Dim date4 As System.DateTime
' date4 gets 4/9/1996 5:55:00 PM.
date4 = date3.Subtract(diff1)

Dim diff2 As System.TimeSpan
' diff2 gets 55 days 4 hours and 20 minutes.
diff2 = System.DateTime.op_Subtraction(date2, date3)

Dim date5 As System.DateTime
' date5 gets 4/9/1996 5:55:00 PM.
date5 = System.DateTime.op_Subtraction(date1, diff2)


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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