You would be able to identify your local timezone for your clock. You would also be able the time in all of the other time zones. In addition, there are timers, alarms, and a stop watch. If you are like me, and communicate with people from around the world, you might have clocks of their timezone if you communicate via IM?. The clock is important on the PC as well as handhelds. The layout is just different. You can also choose the clock to be your screensaver which will of course change 1 per second. Clock is available on all devices requiring an OS.