The Perl Cookbook recommends

-------------
Recipe 9.1. Getting and Setting Timestamps

9.1.1. Problem

You need to retrieve or alter when a file was last modified (written or changed) or accessed (read).

9.1.2. Solution

Use stat to get those times and utime to set them. Both functions are built into Perl:

($READTIME, $WRITETIME) = (stat($filename))[8,9];

utime($NEWREADTIME, $NEWWRITETIME, $filename);

9.1.3. Discussion
[...]
-----------

But I do not know how well this does on Windows.

Updated formatting error, to show the code correctly - thanks Perlbotics