FuzzyClock!

Free Desktop Clock is the advanced replacement for standard Windows tray clock. See the time, day, and date in different skins. Over 50 skins are included in the distribution.

LClock is a very simple program that makes the Windows' clock look like a Windows Longhorn Clock. It also comes with a simple popup calendar with reminder feature.

A real-time working clock blended into beautiful artwork becomes your desktop background

T-Clock - Highly configurable Windows taskbar clock

TClock allows you to modify the clock on the taskbar in Windows. TClock Light is a simple version of TClock.

Alpha Clock is an tiny clock utility with miniature, but very nice LCD-style watch display. You can choose any colors for display background and digits, or use any predefined color scheme. On Windows 2000 or Windows XP also possibly to set the transparency for watch display. Alpha Clock can display your local time or UTC (Coordinated Universal Time).

TClockEx enhances the standard Windows taskbar clock, adding the ability to display the date, time and lots of other information in any format you like. TClockEx is highly customizable, from the format to the font and colour, and even the tooltip information.