How to: Determine a File's Last Accessed Time in Visual Basic
You can use the LastAccessTime or the LastAccessTimeUtc property to get or set the last access time. LastAccessTimeUtc displays the time in Coordinated Universal Time (UTC). For more information, see Standard Date and Time Format Strings.
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To determine a file's last accessed time
Use the GetFileInfo method to return a FileInfo object for the file, which can be queried for information. This example gets a FileInfo object for Testfile.txt and uses the LastAccessTime property to display the last access time.