I'm actually kinda supprised nobody has mentioned that Turbine always makes their time relative to GMT
Granted Time zone hopping trying to figure out your time relative to the time zone listed can be a royal pain, but they make it easy for you by listing the GMT offset... then it just becomes a mater of actually knowing the offset for the time zone your in.Scheduled Server Downtime: 10:00 AM - 12:00 PM EST (-5 GMT) Wednesday, December 16th
(ie. 10:00am - 12:00pm + 5hrs = 3:00pm - 5:00pm +/- your offset)
If you convert the times to 24hr in your head the math involved becomes really simple.
Now, what might be usefull is on the forum home page, above the "Sales & Promotions" box if they had a box with the local server time at turbine (server time) it would remove any doubt from anyones mind about when something is happening