What time will the servers be down for 2.1??

What time will the servers be down for 2.1??

For up to 24 hours.

From Dec. 16, 2013 0:00 a.m. to Dec. 17, 2013 0:00 a.m. (PST)

http://na.finalfantasyxiv.com/lodest...97e9fdc4441285