Hey there! You make a really good point. When I noticed that the times were incorrect, I should have posted for the DevTracker as an update. Sorry for any confusion around the time zones and the change to the maintenance post. We're working to bring the servers back up for you as soon as possible!
Looks like they changed the times without giving us a post-update in the Developer Tracker. The maintenance post has been edited and the twitter feed says 1000GMT, but not notice of the change otherwise :/