TimeSpan.TryParse Method

Definition

Converts the specified string representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded.

Overloads

TryParse(String, IFormatProvider, TimeSpan)

Converts the string representation of a time interval to its TimeSpan equivalent by using the specified culture-specific formatting information, and returns a value that indicates whether the conversion succeeded.

TryParse(ReadOnlySpan<Char>, IFormatProvider, TimeSpan)

Converts the span representation of a time interval to its TimeSpan equivalent by using the specified culture-specific formatting information, and returns a value that indicates whether the conversion succeeded.

TryParse(ReadOnlySpan<Char>, TimeSpan)

Converts the span representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded.

TryParse(String, TimeSpan)

Converts the string representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded.

TryParse(String, IFormatProvider, TimeSpan)

Converts the string representation of a time interval to its TimeSpan equivalent by using the specified culture-specific formatting information, and returns a value that indicates whether the conversion succeeded.

public:
 static bool TryParse(System::String ^ input, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result);
public:
 static bool TryParse(System::String ^ input, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result) = IParsable<TimeSpan>::TryParse;
public static bool TryParse (string input, IFormatProvider formatProvider, out TimeSpan result);
public static bool TryParse (string? input, IFormatProvider? formatProvider, out TimeSpan result);
static member TryParse : string * IFormatProvider * TimeSpan -> bool
Public Shared Function TryParse (input As String, formatProvider As IFormatProvider, ByRef result As TimeSpan) As Boolean

Parameters

input
String

A string that specifies the time interval to convert.

formatProvider
IFormatProvider

An object that supplies culture-specific formatting information.

result
TimeSpan

When this method returns, contains an object that represents the time interval specified by input, or Zero if the conversion failed. This parameter is passed uninitialized.

Returns

true if input was converted successfully; otherwise, false. This operation returns false if the input parameter is null or Empty, has an invalid format, represents a time interval that is less than TimeSpan.MinValue or greater than TimeSpan.MaxValue, or has at least one days, hours, minutes, or seconds component outside its valid range.

Examples

The following example defines an array of CultureInfo objects, and uses each object in calls to the TryParse(String, IFormatProvider, TimeSpan) method to parse the elements in a string array. The example illustrates how the conventions of a specific culture influence the formatting operation.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      string[] values = { "6", "6:12", "6:12:14", "6:12:14:45", 
                          "6.12:14:45", "6:12:14:45.3448", 
                          "6:12:14:45,3448", "6:34:14:45" };
      CultureInfo[] cultures = { new CultureInfo("en-US"), 
                                 new CultureInfo("ru-RU"),
                                 CultureInfo.InvariantCulture };
      
      string header = String.Format("{0,-17}", "String");
      foreach (CultureInfo culture in cultures)
         header += culture.Equals(CultureInfo.InvariantCulture) ? 
                      String.Format("{0,20}", "Invariant") :
                      String.Format("{0,20}", culture.Name);

      Console.WriteLine(header);
      Console.WriteLine();
      
      foreach (string value in values)
      {
         Console.Write("{0,-17}", value);
         foreach (CultureInfo culture in cultures)
         {
            TimeSpan interval = new TimeSpan();
            if (TimeSpan.TryParse(value, culture, out interval))
               Console.Write("{0,20}", interval.ToString("c"));
            else
               Console.Write("{0,20}", "Unable to Parse");
         }
         Console.WriteLine();                                
      }
   }
}
// The example displays the following output:
//    String                          en-US               ru-RU           Invariant
//    
//    6                          6.00:00:00          6.00:00:00          6.00:00:00
//    6:12                         06:12:00            06:12:00            06:12:00
//    6:12:14                      06:12:14            06:12:14            06:12:14
//    6:12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
//    6.12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
//    6:12:14:45.3448    6.12:14:45.3448000     Unable to Parse  6.12:14:45.3448000
//    6:12:14:45,3448       Unable to Parse  6.12:14:45.3448000     Unable to Parse
//    6:34:14:45            Unable to Parse     Unable to Parse     Unable to Parse
open System
open System.Globalization

let values = 
    [| "6"; "6:12"; "6:12:14"; "6:12:14:45" 
       "6.12:14:45"; "6:12:14:45.3448" 
       "6:12:14:45,3448"; "6:34:14:45" |]
let cultures = 
    [| CultureInfo "en-US" 
       CultureInfo "ru-RU"
       CultureInfo.InvariantCulture |] 

let mutable header = String.Format("{0,-17}", "String")
for culture in cultures do
    header <- 
        if culture.Equals CultureInfo.InvariantCulture then
            String.Format("{0,20}", "Invariant")
        else
            String.Format("{0,20}", culture.Name)

printfn $"{header}\n"

for value in values do
    printf $"{value,-17}"
    for culture in cultures do
        match TimeSpan.TryParse(value, culture) with
        | true, interval -> 
            printfn $"{interval,20:c}"
        | _ ->
            printfn "%20s" "Unable to Parse"
// The example displays the following output:
//    String                          en-US               ru-RU           Invariant
//    
//    6                          6.00:00:00          6.00:00:00          6.00:00:00
//    6:12                         06:12:00            06:12:00            06:12:00
//    6:12:14                      06:12:14            06:12:14            06:12:14
//    6:12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
//    6.12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
//    6:12:14:45.3448    6.12:14:45.3448000     Unable to Parse  6.12:14:45.3448000
//    6:12:14:45,3448       Unable to Parse  6.12:14:45.3448000     Unable to Parse
//    6:34:14:45            Unable to Parse     Unable to Parse     Unable to Parse
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim values() As String = { "6", "6:12", "6:12:14", "6:12:14:45", 
                                 "6.12:14:45", "6:12:14:45.3448", 
                                 "6:12:14:45,3448", "6:34:14:45" }
      Dim cultures() As CultureInfo = { New CultureInfo("en-US"), 
                                        New CultureInfo("ru-RU"),
                                        CultureInfo.InvariantCulture }
      
      Dim header As String = String.Format("{0,-17}", "String")
      For Each culture As CultureInfo In cultures
         header += If(culture.Equals(CultureInfo.InvariantCulture), 
                      String.Format("{0,20}", "Invariant"),
                      String.Format("{0,20}", culture.Name))
      Next
      Console.WriteLine(header)
      Console.WriteLine()
      
      For Each value As String In values
         Console.Write("{0,-17}", value)
         For Each culture As CultureInfo In cultures
            Dim interval As New TimeSpan()
            If TimeSpan.TryParse(value, culture, interval) Then
               Console.Write("{0,20}", interval.ToString("c"))
            Else
               Console.Write("{0,20}", "Unable to Parse")
            End If     
         Next
         Console.WriteLine()                                
      Next
   End Sub
End Module
' The example displays the following output:
'    String                          en-US               ru-RU           Invariant
'    
'    6                          6.00:00:00          6.00:00:00          6.00:00:00
'    6:12                         06:12:00            06:12:00            06:12:00
'    6:12:14                      06:12:14            06:12:14            06:12:14
'    6:12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
'    6.12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
'    6:12:14:45.3448    6.12:14:45.3448000     Unable to Parse  6.12:14:45.3448000
'    6:12:14:45,3448       Unable to Parse  6.12:14:45.3448000     Unable to Parse
'    6:34:14:45            Unable to Parse     Unable to Parse     Unable to Parse

Remarks

For more information about this API, see Supplemental API remarks for TimeSpan.TryParse.

Applies to

TryParse(ReadOnlySpan<Char>, IFormatProvider, TimeSpan)

Converts the span representation of a time interval to its TimeSpan equivalent by using the specified culture-specific formatting information, and returns a value that indicates whether the conversion succeeded.

public:
 static bool TryParse(ReadOnlySpan<char> input, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result);
public:
 static bool TryParse(ReadOnlySpan<char> input, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result) = ISpanParsable<TimeSpan>::TryParse;
public static bool TryParse (ReadOnlySpan<char> input, IFormatProvider? formatProvider, out TimeSpan result);
public static bool TryParse (ReadOnlySpan<char> input, IFormatProvider formatProvider, out TimeSpan result);
static member TryParse : ReadOnlySpan<char> * IFormatProvider * TimeSpan -> bool
Public Shared Function TryParse (input As ReadOnlySpan(Of Char), formatProvider As IFormatProvider, ByRef result As TimeSpan) As Boolean

Parameters

input
ReadOnlySpan<Char>

A span containing the characters representing the time interval to convert.

formatProvider
IFormatProvider

An object that supplies culture-specific formatting information.

result
TimeSpan

When this method returns, contains an object that represents the time interval specified by input, or Zero if the conversion failed. This parameter is passed uninitialized.

Returns

true if input was converted successfully; otherwise, false. This operation returns false if the input parameter is null or Empty, has an invalid format, represents a time interval that is less than TimeSpan.MinValue or greater than TimeSpan.MaxValue, or has at least one days, hours, minutes, or seconds component outside its valid range.

Applies to

TryParse(ReadOnlySpan<Char>, TimeSpan)

Converts the span representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded.

public:
 static bool TryParse(ReadOnlySpan<char> s, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParse (ReadOnlySpan<char> s, out TimeSpan result);
static member TryParse : ReadOnlySpan<char> * TimeSpan -> bool
Public Shared Function TryParse (s As ReadOnlySpan(Of Char), ByRef result As TimeSpan) As Boolean

Parameters

s
ReadOnlySpan<Char>

A span containing the characters representing the time interval to convert.

result
TimeSpan

When this method returns, contains an object that represents the time interval specified by s, or Zero if the conversion failed. This parameter is passed uninitialized.

Returns

true if s was converted successfully; otherwise, false. This operation returns false if the s parameter is null or Empty, has an invalid format, represents a time interval that is less than TimeSpan.MinValue or greater than TimeSpan.MaxValue, or has at least one days, hours, minutes, or seconds component outside its valid range.

Applies to

TryParse(String, TimeSpan)

Converts the string representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded.

public:
 static bool TryParse(System::String ^ s, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParse (string s, out TimeSpan result);
public static bool TryParse (string? s, out TimeSpan result);
static member TryParse : string * TimeSpan -> bool
Public Shared Function TryParse (s As String, ByRef result As TimeSpan) As Boolean

Parameters

s
String

A string that specifies the time interval to convert.

result
TimeSpan

When this method returns, contains an object that represents the time interval specified by s, or Zero if the conversion failed. This parameter is passed uninitialized.

Returns

true if s was converted successfully; otherwise, false. This operation returns false if the s parameter is null or Empty, has an invalid format, represents a time interval that is less than TimeSpan.MinValue or greater than TimeSpan.MaxValue, or has at least one days, hours, minutes, or seconds component outside its valid range.

Examples

The following example uses the TryParse method to create TimeSpan objects from valid TimeSpan strings and to indicate when the parse operation has failed because the time span string is invalid.

using System;

public class TryParse
{
   private static void ParseTimeSpan(string intervalStr)
   {
      // Write the first part of the output line.
      Console.Write( "{0,20}   ", intervalStr );

      // Parse the parameter, and then convert it back to a string.
      TimeSpan intervalVal; 
      if (TimeSpan.TryParse(intervalStr, out intervalVal)) 
      {
         string intervalToStr = intervalVal.ToString();
  
         // Pad the end of the TimeSpan string with spaces if it 
         // does not contain milliseconds.
         int pIndex = intervalToStr.IndexOf(':');
         pIndex = intervalToStr.IndexOf('.', pIndex);
         if (pIndex < 0)
            intervalToStr += "        ";
   
         Console.WriteLine("{0,21}", intervalToStr);
         // Handle failure of TryParse method.
      }
      else
      {
         Console.WriteLine("Parse operation failed.");
      }
   } 
   
   public static void Main()
   {
        Console.WriteLine( "{0,20}   {1,21}", 
            "String to Parse", "TimeSpan" );    
        Console.WriteLine( "{0,20}   {1,21}", 
            "---------------", "---------------------" );    

        ParseTimeSpan("0");
        ParseTimeSpan("14");
        ParseTimeSpan("1:2:3");
        ParseTimeSpan("0:0:0.250");
        ParseTimeSpan("10.20:30:40.50");
        ParseTimeSpan("99.23:59:59.9999999");
        ParseTimeSpan("0023:0059:0059.0099");
        ParseTimeSpan("23:0:0");
        ParseTimeSpan("24:0:0");
        ParseTimeSpan("0:59:0");
        ParseTimeSpan("0:60:0");
        ParseTimeSpan("0:0:59");
        ParseTimeSpan("0:0:60");
        ParseTimeSpan("10:");
        ParseTimeSpan("10:0");
        ParseTimeSpan(":10");
        ParseTimeSpan("0:10");
        ParseTimeSpan("10:20:");
        ParseTimeSpan("10:20:0");
        ParseTimeSpan(".123");
        ParseTimeSpan("0.12:00");
        ParseTimeSpan("10.");
        ParseTimeSpan("10.12");
        ParseTimeSpan("10.12:00");
   }
}
//            String to Parse                TimeSpan
//            ---------------   ---------------------
//                          0        00:00:00
//                         14     14.00:00:00
//                      1:2:3        01:02:03
//                  0:0:0.250        00:00:00.2500000
//             10.20:30:40.50     10.20:30:40.5000000
//        99.23:59:59.9999999     99.23:59:59.9999999
//        0023:0059:0059.0099        23:59:59.0099000
//                     23:0:0        23:00:00
//                     24:0:0   Parse operation failed.
//                     0:59:0        00:59:00
//                     0:60:0   Parse operation failed.
//                     0:0:59        00:00:59
//                     0:0:60   Parse operation failed.
//                        10:   Parse operation failed.
//                       10:0        10:00:00
//                        :10   Parse operation failed.
//                       0:10        00:10:00
//                     10:20:   Parse operation failed.
//                    10:20:0        10:20:00
//                       .123   Parse operation failed.
//                    0.12:00        12:00:00
//                        10.   Parse operation failed.
//                      10.12   Parse operation failed.
//                   10.12:00     10.12:00:00
open System

let parseTimeSpan intervalStr =
    // Write the first part of the output line.
    printf $"%20s{intervalStr}   "

    // Parse the parameter, and then convert it back to a string.
    match TimeSpan.TryParse intervalStr with
    | true, intervalVal ->
        let intervalToStr = string intervalVal

        // Pad the end of the TimeSpan string with spaces if it 
        // does not contain milliseconds.
        let pIndex = intervalToStr.IndexOf ':'
        let pIndex = intervalToStr.IndexOf('.', pIndex)
        let intervalToStr =
            if pIndex < 0 then
                intervalToStr + "        "
            else intervalStr
        printfn $"{intervalToStr,21}"
        // Handle failure of TryParse method.
    | _ ->
        printfn "Parse operation failed."

printfn "%20s   %21s" "String to Parse" "TimeSpan"
printfn "%20s   %21s" "---------------" "---------------------"

parseTimeSpan "0"
parseTimeSpan "14"
parseTimeSpan "1:2:3"
parseTimeSpan "0:0:0.250"
parseTimeSpan "10.20:30:40.50"
parseTimeSpan "99.23:59:59.9999999"
parseTimeSpan "0023:0059:0059.0099"
parseTimeSpan "23:0:0"
parseTimeSpan "24:0:0"
parseTimeSpan "0:59:0"
parseTimeSpan "0:60:0"
parseTimeSpan "0:0:59"
parseTimeSpan "0:0:60"
parseTimeSpan "10:"
parseTimeSpan "10:0"
parseTimeSpan ":10"
parseTimeSpan "0:10"
parseTimeSpan "10:20:"
parseTimeSpan "10:20:0"
parseTimeSpan ".123"
parseTimeSpan "0.12:00"
parseTimeSpan "10."
parseTimeSpan "10.12"
parseTimeSpan "10.12:00"
//            String to Parse                TimeSpan
//            ---------------   ---------------------
//                          0        00:00:00
//                         14     14.00:00:00
//                      1:2:3        01:02:03
//                  0:0:0.250        00:00:00.2500000
//             10.20:30:40.50     10.20:30:40.5000000
//        99.23:59:59.9999999     99.23:59:59.9999999
//        0023:0059:0059.0099        23:59:59.0099000
//                     23:0:0        23:00:00
//                     24:0:0   Parse operation failed.
//                     0:59:0        00:59:00
//                     0:60:0   Parse operation failed.
//                     0:0:59        00:00:59
//                     0:0:60   Parse operation failed.
//                        10:   Parse operation failed.
//                       10:0        10:00:00
//                        :10   Parse operation failed.
//                       0:10        00:10:00
//                     10:20:   Parse operation failed.
//                    10:20:0        10:20:00
//                       .123   Parse operation failed.
//                    0.12:00        12:00:00
//                        10.   Parse operation failed.
//                      10.12   Parse operation failed.
//                   10.12:00     10.12:00:00
Module TryParse
    Sub ParseTimeSpan( intervalStr As String )
        ' Write the first part of the output line.
        Console.Write( "{0,20}   ", intervalStr )

        ' Parse the parameter, and then convert it back to a string.
         Dim intervalVal As TimeSpan 
         If TimeSpan.TryParse( intervalStr, intervalVal ) Then
            Dim intervalToStr As String = intervalVal.ToString( )
   
            ' Pad the end of the TimeSpan string with spaces if it 
            ' does not contain milliseconds.
            Dim pIndex As Integer = intervalToStr.IndexOf( ":"c )
            pIndex = intervalToStr.IndexOf( "."c, pIndex )
            If pIndex < 0 Then   intervalToStr &= "        "
   
            Console.WriteLine( "{0,21}", intervalToStr )
         ' Handle failure of TryParse method.
         Else
            Console.WriteLine("Parse operation failed.")
        End If
    End Sub 

    Public Sub Main( )
        Console.WriteLine( "{0,20}   {1,21}", _
            "String to Parse", "TimeSpan" )    
        Console.WriteLine( "{0,20}   {1,21}", _
            "---------------", "---------------------" )    

        ParseTimeSpan("0")
        ParseTimeSpan("14")
        ParseTimeSpan("1:2:3")
        ParseTimeSpan("0:0:0.250")
        ParseTimeSpan("10.20:30:40.50")
        ParseTimeSpan("99.23:59:59.9999999")
        ParseTimeSpan("0023:0059:0059.0099")
        ParseTimeSpan("23:0:0")
        ParseTimeSpan("24:0:0")
        ParseTimespan("0:59:0")
        ParseTimeSpan("0:60:0")
        ParseTimespan("0:0:59")
        ParseTimeSpan("0:0:60")
        ParseTimeSpan("10:")
        ParsetimeSpan("10:0")
        ParseTimeSpan(":10")
        ParseTimeSpan("0:10")
        ParseTimeSpan("10:20:")
        ParseTimeSpan("10:20:0")
        ParseTimeSpan(".123")
        ParseTimeSpan("0.12:00")
        ParseTimeSpan("10.")
        ParseTimeSpan("10.12")
        ParseTimeSpan("10.12:00")
    End Sub 
End Module 
' This example generates the following output:
'            String to Parse                TimeSpan
'            ---------------   ---------------------
'                          0        00:00:00
'                         14     14.00:00:00
'                      1:2:3        01:02:03
'                  0:0:0.250        00:00:00.2500000
'             10.20:30:40.50     10.20:30:40.5000000
'        99.23:59:59.9999999     99.23:59:59.9999999
'        0023:0059:0059.0099        23:59:59.0099000
'                     23:0:0        23:00:00
'                     24:0:0   Parse operation failed.
'                     0:59:0        00:59:00
'                     0:60:0   Parse operation failed.
'                     0:0:59        00:00:59
'                     0:0:60   Parse operation failed.
'                        10:   Parse operation failed.
'                       10:0        10:00:00
'                        :10   Parse operation failed.
'                       0:10        00:10:00
'                     10:20:   Parse operation failed.
'                    10:20:0        10:20:00
'                       .123   Parse operation failed.
'                    0.12:00        12:00:00
'                        10.   Parse operation failed.
'                      10.12   Parse operation failed.
'                   10.12:00     10.12:00:00

Remarks

For more information about this API, see Supplemental API remarks for TimeSpan.TryParse.

Applies to