This should be simple enough to implement since they have done the /quest completions command.
How about /time? I know to some this may seem trivial but to those of differing timezones, /time could bring up the server time at the moment you enter the command.
You could then coordinate events or get-togethers without having to work out the time zone conversions outside of the game.
Just a thought. Also helps when trying to work out (if you don't know) when the server will be down by the time Quarion posts on the forum thread.