As most people would know, sorting of filenames is done from left to right, alphabetically or numerically.
However, most people don't work at Square-Enix and someone there had the horrible idea that we should use the least logic way of writing dates.
So I bring you the ARR Screenshot Name Correcter, which will rename all your screenshots from the abomination of a date format, MMDDYYYY, to the international ISO 8601 standard of YYYYMMDD, which will naturally sort all of your screenshots from oldest to newest, as the Twelve intended.
Download the file ARR_date_correcter.py from this repository.
Python is required. The script is written in Python 3, but Python 2.7 should work (untested!).
This script assumes that your screenshots are in
C:\Users\${USER}\Documents\My Games\FINAL FANTASY XIV - A Realm Reborn\screenshots
(I've tried finding a registry key for the screenshot location but I've had no luck. Feel free to contact me if you know anything I don't!)
If you want to use the current logged in user's username, just run the script by either double clicking the file or running it from command line.
For example: python path\to\ARR_date_correcter.py
If you want to use a different username than the currently logged in user, you can run the script from command line and pass the wanted username as an input argument to the script.
For example: python path\to\ARR_date_correcter.py Gwaeryn