They say the advance of technology has helped make the world that little bit smaller. When you're dealing with people in different countries for business or in your personal life it pays to know what time it is right now so you don't wake them up in the middle of the night!

Windows Vista and Windows 7 have the capability to display clocks from different time zones quickly and easily.

Click the time in the bottom right hand corner of your taskbar to display the clock and a calendar of the current month.

Then click on "Change date and time settings..."

Click the "Additional Clocks" tab.

Select the timezones you want to display and enter a descriptive label (the city you need for example) and click ok.

Done!

The next time you click on the time to display the clock you'll get the extra timezones shown as smaller secondary clocks.