TimeSpan.TicksPerDay Field (System)

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.NET Framework Class Library

TimeSpan.TicksPerDay Field

Represents the number of ticks in 1 day. This field is constant.

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

Syntax

Visual Basic

Public Const TicksPerDay As Long

public const long TicksPerDay

Visual C++

public:
literal long long TicksPerDay

static val mutable TicksPerDay: int64

Remarks

The value of this constant is 864 billion; that is, 864,000,000,000.

Examples

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

Visual Basic


' 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.
using 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;
    } 

    static void Main( )
    {
        const string numberFmt = "{0,-22}{1,18:N0}" ;
        const 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", 
            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 );
    }
} 

/*
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
*/

Visual C++


// Example of the TimeSpan fields.
using namespace System;

// Pad the end of a TimeSpan string with spaces if it does not 
// contain milliseconds.
String^ Align( TimeSpan interval )
{
   String^ intervalStr = interval.ToString();
   int pointIndex = intervalStr->IndexOf( ':' );
   pointIndex = intervalStr->IndexOf( '.', pointIndex );
   if ( pointIndex < 0 )
      intervalStr = String::Concat( intervalStr, "        " );

   return intervalStr;
}

int main()
{
   String^ numberFmt = "{0,-22}{1,18:N0}";
   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", 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 );
}

/*
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
*/

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.

Reference

TimeSpan Structure

System Namespace

Int64

TicksPerMillisecond

TicksPerSecond

TicksPerMinute

TicksPerHour

Community Content

WThomasW

Does not account for leap seconds

Since both DateTime and TimeSpan are based on UTC, and UTC can have leap seconds (which can be positive or negative) inserted by the IERS depending on observation, this field (a) should not be a constant, but must depend upon the date and (b) therefore cannot always be 864 billion ticks. Not doing so can cause incorrect time spans (missing integral seconds) between DateTime dates, depending upon the number of leap seconds between those dates. This value is true only for standard Julian Days (not Julian Dates, which are different) as defined by the International Astronomical Union and based on Terrestrial Time(TT), not UTC.