DateTime.ToLongTimeString Method

July 28, 2014

Converts the value of the current DateTime object to its equivalent long time string representation.

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

public string ToLongTimeString()

Return Value

Type: System.String
The long time string representation of the current DateTime object.

The value of the current DateTime object is formatted using the pattern defined by the LongTimePattern property associated with the current thread culture. The return value is identical to the value returned by specifying the "T" standard date and time format string with the ToString(String) method.

Important noteImportant Note:

The string returned by the ToLongTimeString method is culture-sensitive. It reflects the pattern defined by the current culture's DateTimeFormatInfo object. For example, for the en-US culture, the standard long time pattern is "h:mm:ss tt"; for the de-DE culture, it is "HH:mm:ss"; for the ja-JP culture, it is "H:mm:ss". The specific format string on a particular computer can also be customized so that it differs from the standard long time format string.

For more information about changing the format pattern associated with a format character, see the DateTimeFormatInfo class.

The following example demonstrates the ToLongTimeString method.


// This code example demonstrates the DateTime.ToLongDateString(),
// DateTime.ToLongTimeString(), DateTime.ToShortDateString(), and
// DateTime.ToShortTimeString() methods.

using System;
using System.Threading;
using System.Globalization;

class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      string msg1 = "The date and time patterns are defined in the DateTimeFormatInfo \n" +
                    "object associated with the current thread culture.\n";

      // Initialize a DateTime object.
      outputBlock.Text += String.Format("Initialize the DateTime object to May 16, 2001 3:02:15 AM.\n") + "\n";
      DateTime myDateTime = new System.DateTime(2001, 5, 16, 3, 2, 15);

      // Identify the source of the date and time patterns.
      outputBlock.Text += msg1 + "\n";

      // Display the name of the current culture.
      CultureInfo ci = Thread.CurrentThread.CurrentCulture;
      outputBlock.Text += String.Format("Current culture: \"{0}\"\n", ci.Name) + "\n";

      // Display the long date pattern and string.
      outputBlock.Text += String.Format("Long date pattern: \"{0}\"", ci.DateTimeFormat.LongDatePattern) + "\n";
      outputBlock.Text += String.Format("Long date string:  \"{0}\"\n", myDateTime.ToLongDateString()) + "\n";

      // Display the long time pattern and string.
      outputBlock.Text += String.Format("Long time pattern: \"{0}\"", ci.DateTimeFormat.LongTimePattern) + "\n";
      outputBlock.Text += String.Format("Long time string:  \"{0}\"\n", myDateTime.ToLongTimeString()) + "\n";

      // Display the short date pattern and string.
      outputBlock.Text += String.Format("Short date pattern: \"{0}\"", ci.DateTimeFormat.ShortDatePattern) + "\n";
      outputBlock.Text += String.Format("Short date string:  \"{0}\"\n", myDateTime.ToShortDateString()) + "\n";

      // Display the short time pattern and string.
      outputBlock.Text += String.Format("Short time pattern: \"{0}\"", ci.DateTimeFormat.ShortTimePattern) + "\n";
      outputBlock.Text += String.Format("Short time string:  \"{0}\"\n", myDateTime.ToShortTimeString()) + "\n";
   }
}

/*
This code example produces the following results:

Initialize the DateTime object to May 16, 2001 3:02:15 AM

The date and time patterns are defined in the DateTimeFormatInfo
object associated with the current thread culture.

Current culture: "en-US"

Long date pattern: "dddd, MMMM dd, yyyy"
Long date string:  "Wednesday, May 16, 2001"

Long time pattern: "h:mm:ss tt"
Long time string:  "3:02:15 AM"

Short date pattern: "M/d/yyyy"
Short date string:  "5/16/2001"

Short time pattern: "h:mm tt"
Short time string:  "3:02 AM"

*/


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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