1)   ZoneTick 2.7.0
The ZoneTick download replaces Windows system clock with a multiple time zone clock, utilizing skins, alarms, and double-click actions for each timezone. A taskbar utility for anyone traveling or doing business overseas. Auto-daylight saving shift.

 2)   Skin Clock 1.8
SkinClock is the replacement for standard tray clock having skinned interface. You are able to select between multiple differently styled skins. It lets you showing date and calendar, adjust and synchronize time, create and run reminders

 3)   1st Clock 4.0
See the date as well as the time in the tray clock in a way you want. Monitor PC performance. Show the calendar in one click. Never miss important events with reliable alarms! Keep an exact clock with atomic time. View the time in other time zones.