You do realize that changing the maintenance time will ruin it for people in other timezones? For JST players it would be an incredibly bad time, and in turn, also for myself (being an Australian). I don't know why they just don't have different times for the maintenance on each datacentre, I guess it would be like back in the day with WoW how people would create alts on other regions and overpopulate those servers while their own was done.