EDIT**: The clock is based on GMT (UTC), so you'll have to adjust to your time. Seemed simpler than having a bunch of different displays.
EDIT**: And, of course, official doesn't mean 'official', you're still free to bend the times a little 8-D
"May the mercy of His Divine Shadow fall upon you." - Stanley H. Tweedle, Security Guard class IV, The League of 20,000 planets