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Directory.GetLastWriteTimeUtc Method

Note: This namespace, class, or member is supported only in version 1.1 of the .NET Framework.

Returns the date and time, in universal coordinated time (UTC) format, that the specified file or directory was last written to.

[Visual Basic]
Public Shared Function GetLastWriteTimeUtc( _
   ByVal path As String _
) As DateTime
public static DateTime GetLastWriteTimeUtc(
 string path
public: static DateTime GetLastWriteTimeUtc(
 String* path
public static function GetLastWriteTimeUtc(
   path : String
) : DateTime;


The file or directory for which to obtain modification date and time information.

Return Value

A DateTime structure set to the date and time the specified file or directory was last written to. This value is expressed in UTC time.


Exception Type Condition
IOException The specified path was not found.
UnauthorizedAccessException The caller does not have the required permission.
ArgumentException path is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.
ArgumentNullException path is a null reference (Nothing in Visual Basic).
PathTooLongException The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.


The following table lists examples of other typical or related I/O tasks.

To do this... See the example in this topic...
Create a text file. Writing Text to a File
Write to a text file. Writing Text to a File
Read from a text file. Reading Text from a File
Copy a directory. Directory
Delete a directory. Delete


See the subdirectories of a directory. GetDirectories


Find the size of a directory. Directory


Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

.NET Framework Security: 

See Also

Directory Class | Directory Members | System.IO Namespace | Working with I/O | Reading Text from a File | Writing Text to a File