The PC Timer 

An easy to use countdown timer/alarm clock. Great for people who are charged an hourly rate by their Internet Service Provider, and for those of us who continually lose track of time while on the Internet. FREE!
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CLOX 2000 

A superb suite of analog and digital clocks and other timekeeping tools. Featuring timezone clocks, internet time synchronization, alarm, calendar, daylight map and other accessories including stopwatches, countdowns and more.
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xReminder Pro 

xReminder Pro is an elegant-looking event-based personal information manager that can help you remember birthdays, holidays, and other special events. It contains fully customizable Clock and can synchronize computer's clock with Atomic Time Servers
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UK Speaking Clock 

This is a multilingual Speaking Clock that uses over 50 different skins to show the time to you using either digital or analogue displays. You can have the time announced to you in over 8 languages
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