Make sure to change 201212211111 to the date you want and to replace /Volumes/Mac\ HD/Pictures/somefile.jpg with the proper path to the file you wish to alter the date for.Ĥ. Touch -t 201212211111 /Volumes/Mac\ HD/Pictures/somefile.jpgĢ01212211111 in the example above represent “Decem11:11 AM” or the end of the 5,125 years that comprise the “Great Cycle” in the sacred Tzolk’in calendar of the Maya (and you can relax the world didn’t end then - and I didn’t think it would when I wrote this article!).