(No, not about clockwork :P)
How about putting a clock in-game and on the website(that doesn't stays on the Forums Index)?
Of course, it should be the server time.
(I'm sorry if I copied someone.)
I think it would be cool, but also: In a server the time will change from day to night (and vice versa, and also can be put ON or OFF) and a little window with the hour and day (saturday for example, ON/OFF too)