Analogue clock - world time zones

Hi everyone,

I need to create a set of analogue clocks which display the times from various time zones, like these ones here…

I’ve found quite a good and simple tutorial here…

…that uses the time from your system clock and then uses that info to rotate the hands of the clock.

There must be some way to adapt this code to show the time from various time zones - does anybody know how to do this?