Maininance is usually done when it least inconvinances users, which is usually over night or in the case of a school vacation times, however its harder for a world wide MMO, so they do it I assume when theres the least people online. In Japan they are at work now, in US they are at work therefore the majority of players that would be online are EU right now and it has always been known that EU players are of teh minoroty on FFXI and FFXIV so this time least inconvinances users.

Kinda gutting cos i'm in UK lol.