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TimeSpan.Zero Field

Represents the zero TimeSpan value. This field is read-only.

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

'Declaration
Public Shared ReadOnly Zero As TimeSpan

Because the value of the Zero field is a TimeSpan object that represents a zero time value, you can compare it with other TimeSpan objects to determine whether the latter represent positive, non-zero, or negative time intervals. You can also use this field to initialize a TimeSpan object to a zero time value.

The following example references and displays the value of the Zero field.

' Example of the TimeSpan fields. 
Imports System
Imports Microsoft.VisualBasic

Module TimeSpanFieldsDemo

    ' Pad the end of a TimeSpan string with spaces if it does not  
    ' contain milliseconds. 
    Function Align( interval As TimeSpan ) As String 

        Dim intervalStr As String = interval.ToString( )
        Dim pointIndex  As Integer = intervalStr.IndexOf( ":"c )

        pointIndex = intervalStr.IndexOf( "."c, pointIndex )
        If pointIndex < 0 Then intervalStr &= "        "
        Align = intervalStr
    End Function 

    Sub Main( )

        Const numberFmt As String = "{0,-22}{1,18:N0}" 
        Const timeFmt As String = "{0,-22}{1,26}"

        Console.WriteLine( _
            "This example of the fields of the TimeSpan class" & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( numberFmt, "Field", "Value" )
        Console.WriteLine( numberFmt, "-----", "-----" )

        ' Display the maximum, minimum, and zero TimeSpan values.
        Console.WriteLine( timeFmt, "Maximum TimeSpan", _
            Align( TimeSpan.MaxValue ) )
        Console.WriteLine( timeFmt, "Minimum TimeSpan", _
            Align( TimeSpan.MinValue ) )
        Console.WriteLine( timeFmt, "Zero TimeSpan", _
            Align( TimeSpan.Zero ) )
        Console.WriteLine( )

        ' Display the ticks-per-time-unit fields.
        Console.WriteLine( numberFmt, "Ticks per day", _
            TimeSpan.TicksPerDay )
        Console.WriteLine( numberFmt, "Ticks per hour", _
            TimeSpan.TicksPerHour )
        Console.WriteLine( numberFmt, "Ticks per minute", _
            TimeSpan.TicksPerMinute )
        Console.WriteLine( numberFmt, "Ticks per second", _
            TimeSpan.TicksPerSecond )
        Console.WriteLine( numberFmt, "Ticks per millisecond", _
            TimeSpan.TicksPerMillisecond )
    End Sub  
End Module  

' This example of the fields of the TimeSpan class 
' generates the following output. 
'  
' Field                              Value 
' -----                              ----- 
' Maximum TimeSpan       10675199.02:48:05.4775807 
' Minimum TimeSpan      -10675199.02:48:05.4775808 
' Zero TimeSpan                   00:00:00 
'  
' Ticks per day            864,000,000,000 
' Ticks per hour            36,000,000,000 
' Ticks per minute             600,000,000 
' Ticks per second              10,000,000 
' Ticks per millisecond             10,000

.NET Framework

Supported in: 4.5, 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

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, 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.

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