They announced last week they would do daily restarts until servers were stable, but the timer was broken and was not fixed until Wednesday.
I've only been playing on and off but I already know that the servers will come down for a daily restart at 5am PDT / 1pm GMT... There's also the 15min warning of a restart in game. The bigger issue is that those 15mins are not getting saved and instead when the servers come back it does a rollback to 4:45.
There should be an in-game announcement for server restarts before they happen. Did that not go off this morning?
Yaviev, there was the 15 minute count down this morning. There is however still the issue of characters being saved and rolled back to the moment the announcement is made.