Article: " Pull down the "Applications" menu, then click on "Utilities", then launch Terminal. Drag and drop the file onto the Terminal window, and Terminal will provide the file path at the command prompt. The file path can then be copied. This will change the modification date. This sends a command to the touch utility (which sets the modification and access times of files) to set the new date and time. NOTE: YYYY means the year, MM the month, DD the day, hh the hour, mm the minute, ss the second of the target time. This will change the access date. This will change the creation date, unfortunately, only if the target time is before the original creation time. If your target time is after the original creation time, see the citation for the solution.

What is a summary?
Launch the OS X "Terminal. Find the file path of the file you are interested in. Enter the terminal command "touch -mt YYYYMMDDhhmm.ss [file path]" into the Terminal. Enter the command "touch -at YYYYMMDDhhmm.ss [file path]". Enter the command "touch -t YYYYMMDDhhmm.ss [file path]".