QuartzClocks For Mac

QuartzClocks is a free software package for Mac OS X that provides a desktop clock application as well as a clock screensaver.

QuartzClocks provides your desktop with 9 different eye-catching scalable clocks drawn using Quartz 2D. You can easily switch to the next or previous clock by using CMD + [ and CMD + ] respectively, or you can use the Clock menu.

QuartzClocks also includes a Preferences window where you an select your favorite clock as well. You can even change the clock's background with any image you prefer from the Clocks tab of the Preferences window.

The QuartzClocks app also allows you to toggle the shadow effect and the clock face. You can adjust the opacity of the clock window and toggle an option to go through window when mouse clicking.

As for the screensaver, it's not guaranteed to work on Mac OS X version 10.8.