Last modified: 2013-12-09 21:52:48 UTC
Rather than limiting users to pre-selected date formats, perhaps users could specify their own formats using the PHP date() format (as in phpBB) or a similar format.
*** Bug 12280 has been marked as a duplicate of this bug. ***
Should be pretty easy with the new prefs (just change 'radio' to 'selectorother'), just need a way to validate date inputs.