Clock apps for Ubuntu 11.04

Collegues! Can not find effective clock app for the tray (as like in Mandriva) Cairo doesnt work absolutely (hands start to shake) Hope you ll advise me cool app for Ubuntu 11.04

i google this did not try it myself Perfect Clock for Linux GTK-Apps.org and Download Alarm Clock 1.4.3 / 1.4.90 Beta for Linux - Alarm Clock project is a simple alarm clock software for the GNOME desktop. - Softpedia