Gets or sets the string designator for hours that are "ante meridiem" (before noon).
Assembly: mscorlib (in mscorlib.dll)
If the custom pattern includes the format pattern "tt" and the time is before noon, DateTime.ToString displays the value of in place of the "tt" in the format pattern. If the custom pattern includes the format pattern "t", only the first character of is displayed. Your application should use "tt" for languages for which it is necessary to maintain the distinction between AM and PM. An example is Japanese, for which the AM and PM designators differ in the second character instead of the first character.
For cultures that do not use an AM designator, this property returns an empty string.
The property is used for all times from 00:00:00 (midnight) to 11:59:59.999.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.