This documentation is archived and is not being maintained.

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
'Usage
Dim value As TimeSpan

value = TimeSpan.Zero

public static final TimeSpan Zero
public static final var Zero : TimeSpan
Not applicable.

Because it returns a TimeSpan object that represents a zero time value, the Zero property can be compared with other TimeSpan objects to determine whether the latter represent positive, non-zero, or negative time spans.

The following code 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

// Example of the TimeSpan fields.
import System.*;

class TimeSpanFieldsDemo
{
    // Pad the end of a TimeSpan string with spaces if it does not 
    // contain milliseconds.
    static String Align(TimeSpan interval)
    {
        String intervalStr = interval.ToString();
        int pointIndex = intervalStr.IndexOf(':');

        pointIndex = intervalStr.IndexOf('.', pointIndex);
        if (pointIndex < 0) {
            intervalStr += "        ";
        }
        return intervalStr;
    } //Align

    public static void main(String[] args)
    {
        final String numberFmt = "{0,-22}{1,18}";
        final String timeFmt = "{0,-22}{1,26}";

        Console.WriteLine(("This example of the fields of the TimeSpan class" 
            + "\ngenerates the following output.\n"));
        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", 
            ((System.Int64)TimeSpan.TicksPerDay).ToString("N0"));
        Console.WriteLine(numberFmt, "Ticks per hour", 
            ((System.Int64)TimeSpan.TicksPerHour).ToString("N0"));
        Console.WriteLine(numberFmt, "Ticks per minute", 
            ((System.Int64)TimeSpan.TicksPerMinute).ToString("N0"));
        Console.WriteLine(numberFmt, "Ticks per second", 
            ((System.Int64)TimeSpan.TicksPerSecond).ToString("N0"));
        Console.WriteLine(numberFmt, "Ticks per millisecond", 
            ((System.Int64)TimeSpan.TicksPerMillisecond).ToString("N0"));
    } //main
} //TimeSpanFieldsDemo

/*
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
*/

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0
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