Mach Clock is the live Clock for your Dock and Desktop. Featuring 8 different analog and digital faces, five different World Clocks, optionally show seconds, A.M/P.M.
Not only will the App icon update live, but if you want to put a Clock Window on your Desktop, you can minimize this window and the minimized Clock window will update live in the Dock as well! And Mach Clock can switch between over 400 cities; all in real-time.