How to get more than 3 international clocks in Windows?

In windows 10, you can use the alarms and clock apps with the Alarms & Clock.

You can add up to 10 clocks.

You can right click these to pin them to your start menu too =)

Here are the steps:

1. Right-click on the desktop
2. Pick Gadgets
3. Drag a Clock to the desktop
4. Hover near the top right of the clock and click the spanner
5. Pick your time zone
6. Repeat until you have all the clocks you want.

Windows 7 supports only two additional time zones. If you want to set up more than two additional time zones, then you will have to install some 3rd party software like this one.