http://phantasystar.sega.jp/20th/campaign/
I saw something in the news last week about timecodes,
I think it says something about about 48hrs, from end of maintenance until 9/28 23:59

I did not see a topic for it, maybe this will allow some people with an inactive account on the jp server to return for a little while.

(Note: I only picked out the stuff I could read :P)