T-Clock Redux - T-Clock Redux in an enhanced fork of Stoic Joker's T-Clock 2010 with ISO week number support...
TClock Light - TClock allows you to modify the clock on the taskbar in Windows.
ClocX - ClocX - freeware analog clock for Windows desktop with many features like calendar, alarms, skins, antialiasing and transparency.
DS Clock - Keep your time synchronized with Atomic Time servers, using customizable digital desktop clock with westminster chimes.
FuzzyClock - Often you don't need the exact time in hours, minutes and seconds.
LClock - Longhorn systray clock program