Please always give examples of what you're looking for and how what you want it changed to. Your question is so vague that most likely nobody knows if there's a script for what you want (because we're not sure what it is that you want).
I'm guessing that you want to change Jan. 12, 2016 to Jan. 12th, 2016. Or 12 Jan. 2016 to 12th Jan. 2016? Or January 12 to January 12th? Many ways to format a date.