In Microsoft Windows Vista and Windows 7, we can the multiple clocks with different time
zones, as shown in the below example, which shows the local time, Eastern Time,
and time in India.
To add more than one clock at the same time, first of all
you have to click on the start menu and then to go control panel. Then go to “Clock,
Language and Region” option. Here you find “Add clocks for different time zones”
option. Click on it. A new window will open to you. In the Additional Clocks
tab, check the first Show this clock box, then selects the time zone for the
second clock, and the name of the clock. If you want more than two clocks
repeat the same steps for the third clock. Once all clocks have been enabled
click OK and now when hovering over the time and date in the Taskbar or
clicking on the time you should see all new time zones.