TimeSpan.LessThan(TimeSpan, TimeSpan) Operator

Reference

Definition

Namespace:: System

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: TimeSpan.cs

Source:: TimeSpan.cs

Source:: TimeSpan.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Indicates whether a specified TimeSpan is less than another specified TimeSpan.

public:
 static bool operator <(TimeSpan t1, TimeSpan t2);

public static bool operator < (TimeSpan t1, TimeSpan t2);

static member ( < ) : TimeSpan * TimeSpan -> bool

Public Shared Operator < (t1 As TimeSpan, t2 As TimeSpan) As Boolean

Parameters

t1: TimeSpan

The first time interval to compare.

t2: TimeSpan

The second time interval to compare.

Returns

Boolean

true if the value of t1 is less than the value of t2; otherwise, false.

Examples

The following example compares several TimeSpan objects to a reference TimeSpan using the LessThan operator.

// Example of the TimeSpan relational operators.
using namespace System;
const __wchar_t * protoFmt = L"{0,35}    {1}";

// Compare TimeSpan parameters, and display them with the results.
void CompareTimeSpans( TimeSpan Left, TimeSpan Right, String^ RightText )
{
   String^ dataFmt = gcnew String( protoFmt );
   Console::WriteLine();
   Console::WriteLine( dataFmt, String::Concat( "Right: ", RightText ), Right );
   Console::WriteLine( dataFmt, "Left == Right", Left == Right );
   Console::WriteLine( dataFmt, "Left >  Right", Left > Right );
   Console::WriteLine( dataFmt, "Left >= Right", Left >= Right );
   Console::WriteLine( dataFmt, "Left != Right", Left != Right );
   Console::WriteLine( dataFmt, "Left <  Right", Left < Right );
   Console::WriteLine( dataFmt, "Left <= Right", Left <= Right );
}

int main()
{
   TimeSpan Left = TimeSpan(2,0,0);
   Console::WriteLine( "This example of the TimeSpan relational operators "
   "generates \nthe following output. It creates several "
   "different TimeSpan \nobjects and compares them with "
   "a 2-hour TimeSpan.\n" );
   Console::WriteLine( gcnew String( protoFmt ), "Left: TimeSpan( 2, 0, 0 )", Left );
   
   // Create objects to compare with a 2-hour TimeSpan.
   CompareTimeSpans( Left, TimeSpan(0,120,0), "TimeSpan( 0, 120, 0 )" );
   CompareTimeSpans( Left, TimeSpan(2,0,1), "TimeSpan( 2, 0, 1 )" );
   CompareTimeSpans( Left, TimeSpan(2,0,-1), "TimeSpan( 2, 0, -1 )" );
   CompareTimeSpans( Left, TimeSpan::FromDays( 1.0 / 12. ), "TimeSpan::FromDays( 1 / 12 )" );
}

/*
This example of the TimeSpan relational operators generates
the following output. It creates several different TimeSpan
objects and compares them with a 2-hour TimeSpan.

          Left: TimeSpan( 2, 0, 0 )    02:00:00

       Right: TimeSpan( 0, 120, 0 )    02:00:00
                      Left == Right    True
                      Left >  Right    False
                      Left >= Right    True
                      Left != Right    False
                      Left <  Right    False
                      Left <= Right    True

         Right: TimeSpan( 2, 0, 1 )    02:00:01
                      Left == Right    False
                      Left >  Right    False
                      Left >= Right    False
                      Left != Right    True
                      Left <  Right    True
                      Left <= Right    True

        Right: TimeSpan( 2, 0, -1 )    01:59:59
                      Left == Right    False
                      Left >  Right    True
                      Left >= Right    True
                      Left != Right    True
                      Left <  Right    False
                      Left <= Right    False

Right: TimeSpan::FromDays( 1 / 12 )    02:00:00
                      Left == Right    True
                      Left >  Right    False
                      Left >= Right    True
                      Left != Right    False
                      Left <  Right    False
                      Left <= Right    True
*/

// Example of the TimeSpan relational operators.
using System;

class TSRelationalOpsDemo
{
    const string dataFmt = "{0,34}    {1}" ;

    // Compare TimeSpan parameters, and display them with the results.
    static void CompareTimeSpans( TimeSpan Left, TimeSpan Right, 
        string RightText )
    {
        Console.WriteLine( );
        Console.WriteLine( dataFmt, "Right: " + RightText, Right );
        Console.WriteLine( dataFmt, "Left == Right", Left == Right );
        Console.WriteLine( dataFmt, "Left >  Right", Left > Right );
        Console.WriteLine( dataFmt, "Left >= Right", Left >= Right );
        Console.WriteLine( dataFmt, "Left != Right", Left != Right );
        Console.WriteLine( dataFmt, "Left <  Right", Left < Right );
        Console.WriteLine( dataFmt, "Left <= Right", Left <= Right );
    }

    static void Main( )
    {
        TimeSpan Left = new TimeSpan( 2, 0, 0 );

        Console.WriteLine(
            "This example of the TimeSpan relational operators " +
            "generates \nthe following output. It creates several " +
            "different TimeSpan \nobjects and compares them with " +
            "a 2-hour TimeSpan.\n" );
        Console.WriteLine( dataFmt, 
            "Left: TimeSpan( 2, 0, 0 )", Left );

        // Create objects to compare with a 2-hour TimeSpan.
        CompareTimeSpans( Left, new TimeSpan( 0, 120, 0 ), 
            "TimeSpan( 0, 120, 0 )" );
        CompareTimeSpans( Left, new TimeSpan( 2, 0, 1 ), 
            "TimeSpan( 2, 0, 1 )" );
        CompareTimeSpans( Left, new TimeSpan( 2, 0, -1 ), 
            "TimeSpan( 2, 0, -1 )" );
        CompareTimeSpans( Left, TimeSpan.FromDays( 1.0 / 12D ), 
            "TimeSpan.FromDays( 1 / 12 )" );
    } 
} 

/*
This example of the TimeSpan relational operators generates
the following output. It creates several different TimeSpan
objects and compares them with a 2-hour TimeSpan.

         Left: TimeSpan( 2, 0, 0 )    02:00:00

      Right: TimeSpan( 0, 120, 0 )    02:00:00
                     Left == Right    True
                     Left >  Right    False
                     Left >= Right    True
                     Left != Right    False
                     Left <  Right    False
                     Left <= Right    True

        Right: TimeSpan( 2, 0, 1 )    02:00:01
                     Left == Right    False
                     Left >  Right    False
                     Left >= Right    False
                     Left != Right    True
                     Left <  Right    True
                     Left <= Right    True

       Right: TimeSpan( 2, 0, -1 )    01:59:59
                     Left == Right    False
                     Left >  Right    True
                     Left >= Right    True
                     Left != Right    True
                     Left <  Right    False
                     Left <= Right    False

Right: TimeSpan.FromDays( 1 / 12 )    02:00:00
                     Left == Right    True
                     Left >  Right    False
                     Left >= Right    True
                     Left != Right    False
                     Left <  Right    False
                     Left <= Right    True
*/

// Example of the TimeSpan relational operators.
open System

let dataPrint x y = printfn $"%34s{x}    {y}"

// Compare TimeSpan parameters, and display them with the results.
let compareTimeSpans (left: TimeSpan) (right: TimeSpan) rightText =
    printfn ""
    dataPrint ("Right: " + rightText) right
    dataPrint "Left == Right" (left = right)
    dataPrint "Left >  Right" (left > right)
    dataPrint "Left >= Right" (left >= right)
    dataPrint "Left != Right" (left <> right)
    dataPrint "Left <  Right" (left < right)
    dataPrint "Left <= Right" (left <= right)

let left = TimeSpan( 2, 0, 0 )

printfn "This example of the TimeSpan relational operators generates \nthe following output. It creates several different TimeSpan \nobjects and compares them with a 2-hour TimeSpan.\n"
dataPrint "Left: TimeSpan( 2, 0, 0 )" left

// Create objects to compare with a 2-hour TimeSpan.
compareTimeSpans left (TimeSpan(0, 120, 0)) "TimeSpan( 0, 120, 0 )"
compareTimeSpans left (TimeSpan(2, 0, 1)) "TimeSpan( 2, 0, 1 )"
compareTimeSpans left (TimeSpan(2, 0, -1)) "TimeSpan( 2, 0, -1 )"
compareTimeSpans left (TimeSpan.FromDays(1. / 12.)) "TimeSpan.FromDays( 1 / 12 )"

(*
This example of the TimeSpan relational operators generates
the following output. It creates several different TimeSpan
objects and compares them with a 2-hour TimeSpan.

         Left: TimeSpan( 2, 0, 0 )    02:00:00

      Right: TimeSpan( 0, 120, 0 )    02:00:00
                     Left == Right    True
                     Left >  Right    False
                     Left >= Right    True
                     Left != Right    False
                     Left <  Right    False
                     Left <= Right    True

        Right: TimeSpan( 2, 0, 1 )    02:00:01
                     Left == Right    False
                     Left >  Right    False
                     Left >= Right    False
                     Left != Right    True
                     Left <  Right    True
                     Left <= Right    True

       Right: TimeSpan( 2, 0, -1 )    01:59:59
                     Left == Right    False
                     Left >  Right    True
                     Left >= Right    True
                     Left != Right    True
                     Left <  Right    False
                     Left <= Right    False

Right: TimeSpan.FromDays( 1 / 12 )    02:00:00
                     Left == Right    True
                     Left >  Right    False
                     Left >= Right    True
                     Left != Right    False
                     Left <  Right    False
                     Left <= Right    True
*)

' Example of the TimeSpan relational operators.
Module TSRelationalOpsDemo
    
    Const dataFmt As String = "{0,-47}{1}"

    ' Compare TimeSpan parameters, and display them with the results.
    Sub CompareTimeSpans( Left As TimeSpan, Right As TimeSpan, _
        RightText As String )

        Console.WriteLine( )
        Console.WriteLine( dataFmt, "Right: " & RightText, Right )
        Console.WriteLine( dataFmt, _
            "TimeSpan.op_Equality( Left, Right )", _
            TimeSpan.op_Equality( Left, Right ) )
        Console.WriteLine( dataFmt, _
            "TimeSpan.op_GreaterThan( Left, Right )", _
            TimeSpan.op_GreaterThan( Left, Right ) )
        Console.WriteLine( dataFmt, _
            "TimeSpan.op_GreaterThanOrEqual( Left, Right )", _
            TimeSpan.op_GreaterThanOrEqual( Left, Right ) )
        Console.WriteLine( dataFmt, _
            "TimeSpan.op_Inequality( Left, Right )", _
            TimeSpan.op_Inequality( Left, Right ) )
        Console.WriteLine( dataFmt, _
            "TimeSpan.op_LessThan( Left, Right )", _
            TimeSpan.op_LessThan( Left, Right ) )
        Console.WriteLine( dataFmt, _
            "TimeSpan.op_LessThanOrEqual( Left, Right )", _
            TimeSpan.op_LessThanOrEqual( Left, Right ) )
    End Sub 
        
    Sub Main( )
        Dim Left As New TimeSpan( 2, 0, 0 )
            
        Console.WriteLine( _
            "This example of the TimeSpan relational operators " & _
            "generates " & vbCrLf & "the following output. It " & _
            "creates several different TimeSpan " & vbCrLf & _
            "objects and compares them with a 2-hour " & _
            "TimeSpan." & vbCrLf )
        Console.WriteLine( dataFmt, "Left: TimeSpan( 2, 0, 0 )", Left )
            
        ' Create objects to compare with a 2-hour TimeSpan.
        CompareTimeSpans( Left, New TimeSpan( 0, 120, 0 ), _
            "TimeSpan( 0, 120, 0 )" )
        CompareTimeSpans( Left, New TimeSpan( 2, 0, 1 ), _
            "TimeSpan( 2, 0, 1 )" )
        CompareTimeSpans( Left, New TimeSpan( 2, 0, - 1 ), _
            "TimeSpan( 2, 0, -1 )" )
        CompareTimeSpans( Left, TimeSpan.FromDays( 1.0 / 12.0 ), _
            "TimeSpan.FromDays( 1 / 12 )" )
    End Sub 
End Module 

' This example of the TimeSpan relational operators generates
' the following output. It creates several different TimeSpan
' objects and compares them with a 2-hour TimeSpan.
' 
' Left: TimeSpan( 2, 0, 0 )                      02:00:00
' 
' Right: TimeSpan( 0, 120, 0 )                   02:00:00
' TimeSpan.op_Equality( Left, Right )            True
' TimeSpan.op_GreaterThan( Left, Right )         False
' TimeSpan.op_GreaterThanOrEqual( Left, Right )  True
' TimeSpan.op_Inequality( Left, Right )          False
' TimeSpan.op_LessThan( Left, Right )            False
' TimeSpan.op_LessThanOrEqual( Left, Right )     True
' 
' Right: TimeSpan( 2, 0, 1 )                     02:00:01
' TimeSpan.op_Equality( Left, Right )            False
' TimeSpan.op_GreaterThan( Left, Right )         False
' TimeSpan.op_GreaterThanOrEqual( Left, Right )  False
' TimeSpan.op_Inequality( Left, Right )          True
' TimeSpan.op_LessThan( Left, Right )            True
' TimeSpan.op_LessThanOrEqual( Left, Right )     True
' 
' Right: TimeSpan( 2, 0, -1 )                    01:59:59
' TimeSpan.op_Equality( Left, Right )            False
' TimeSpan.op_GreaterThan( Left, Right )         True
' TimeSpan.op_GreaterThanOrEqual( Left, Right )  True
' TimeSpan.op_Inequality( Left, Right )          True
' TimeSpan.op_LessThan( Left, Right )            False
' TimeSpan.op_LessThanOrEqual( Left, Right )     False
' 
' Right: TimeSpan.FromDays( 1 / 12 )             02:00:00
' TimeSpan.op_Equality( Left, Right )            True
' TimeSpan.op_GreaterThan( Left, Right )         False
' TimeSpan.op_GreaterThanOrEqual( Left, Right )  True
' TimeSpan.op_Inequality( Left, Right )          False
' TimeSpan.op_LessThan( Left, Right )            False
' TimeSpan.op_LessThanOrEqual( Left, Right )     True

Remarks

The equivalent method for this operator is TimeSpan.Compare(TimeSpan, TimeSpan)

Applies to

Del via