Is it midnight on the 13th, as in I can play all of Thursday and Friday and must plan for a 4-day weekend? Or 11:59 PM Thursday and I can play all of Friday?
Has this been disclosed anywhere?
I can't find it right now, but I swear I read that it was 12:01am Thursday the 13th Pacific time (so 3:01am EST, 2:01am CST, 1:01am MST).
From everything I've seen, 3:00am EST on the 13th. Working on Thursday is gonna SUUUUCK
If they run it like they did MoP last time, it would be 12:00am on Friday the 14th, and as long as you have all the content downloaded, you'll be able to start playing WoD without even having to log out.