We'll go with my timezone since I'm too tired right now to figure out a better way. It's EST, and 2:00 PM here, so in 10 hours guilds may begin work officially on their projects.
Guild leaders, send out PMs, contact members, do whatever you need to do just make sure everyone is ready to begin soon.
Also first press release is due Jan. 23. One press release every 3 weeks.
EDIT: Okay, apparently I can't stress this enough. 10 hours from the time of this post. Not everyone lives in the same timezone people. For most of you this means you'll actually be able to start before midnight.