ToString Method (String, IFormatProvider)
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TimeSpan.ToString Method (String, IFormatProvider)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Converts the value of the current TimeSpan object to its equivalent string representation by using the specified format and culture-specific formatting information.

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

public string ToString(
	string format,
	IFormatProvider formatProvider


Type: System.String
A standard or custom TimeSpan format string.
Type: System.IFormatProvider
An object that supplies culture-specific formatting information.

Return Value

Type: System.String
The string representation of the current TimeSpan value, as specified by format and formatProvider.


IFormattable.ToString(String, IFormatProvider)


The format parameter is not recognized or is not supported.

The format parameter can be any valid standard or custom format specifier for TimeSpan values. If format is equal to String.Empty or is null, the return value of the current TimeSpan object is formatted with the common format specifier ("c"). If format is any other value, the method throws a FormatException.

The .NET Framework provides extensive formatting support, which is described in greater detail in the following formatting topics:

The formatProvider parameter is an IFormatProvider implementation that provides culture-specific information about the format of the returned string. The formatProvider parameter can be any of the following:

If formatProvider is null, the DateTimeFormatInfo object that is associated with the current culture is used.

The following example calls the ToString(String, IFormatProvider) method to format two time intervals. The example calls the method twice for each format string, first to display it using the conventions of the en-US culture and then to display it using the conventions of the fr-FR culture.

using System;
using System.Globalization;

public class Example
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
      outputBlock.FontFamily = new System.Windows.Media.FontFamily("Courier New");

      TimeSpan[] intervals = { new TimeSpan(38, 30, 15), 
                               new TimeSpan(16, 14, 30) };
      CultureInfo[] cultures = { new CultureInfo("en-US"), 
                                 new CultureInfo("fr-FR") };
      string[] formats = { "c", "g", "G", @"hh\:mm\:ss" };
      outputBlock.Text += String.Format("{0,12}      Format  {1,22}  {2,22}\n",
                        "Interval", cultures[0].Name, cultures[1].Name) + "\n";

      foreach (var interval in intervals)
         foreach (var fmt in formats)
            outputBlock.Text += String.Format("{0,12}  {1,10}  {2,22}  {3,22}",
                              interval, fmt,
                              interval.ToString(fmt, cultures[0]),
                              interval.ToString(fmt, cultures[1])) + "\n";
         outputBlock.Text += "\n";
// The example displays the following output:
//        Interval      Format                   en-US                   fr-FR
//      1.14:30:15           c              1.14:30:15              1.14:30:15
//      1.14:30:15           g              1:14:30:15              1:14:30:15
//      1.14:30:15           G      1:14:30:15.0000000      1:14:30:15,0000000
//      1.14:30:15  hh\:mm\:ss                14:30:15                14:30:15
//        16:14:30           c                16:14:30                16:14:30
//        16:14:30           g                16:14:30                16:14:30
//        16:14:30           G      0:16:14:30.0000000      0:16:14:30,0000000
//        16:14:30  hh\:mm\:ss                16:14:30                16:14:30

Windows Phone OS

Supported in: 8.1, 8.0, 7.1

Windows Phone

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