File.SetLastAccessTimeUtc(String, DateTime) Method


Sets the date and time, in coordinated universal time (UTC), that the specified file was last accessed.

 static void SetLastAccessTimeUtc(System::String ^ path, DateTime lastAccessTimeUtc);
public static void SetLastAccessTimeUtc (string path, DateTime lastAccessTimeUtc);
static member SetLastAccessTimeUtc : string * DateTime -> unit
Public Shared Sub SetLastAccessTimeUtc (path As String, lastAccessTimeUtc As DateTime)



The file for which to set the access date and time information.


A DateTime containing the value to set for the last access date and time of path. This value is expressed in UTC time.


path is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.

path is null.

The specified path, file name, or both exceed the system-defined maximum length.

The specified path was not found.

The caller does not have the required permission.

path is in an invalid format.

lastAccessTimeUtc specifies a value outside the range of dates or times permitted for this operation.


The path parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory.

For a list of common I/O tasks, see Common I/O Tasks.

Applies to

See also