TimeZone Widget Creator

This page will generate a javascript widget containing a live multi-timezone time and date which you can embed in a webpage. The widget is self-contained and doesn't load any external content. It's also really lightweight (2.4KB uncompressed with 5 timezones and no theme). The widget includes time transitions data (like applying daylight saving) for the next five years, after that the time may be wrong.
Select zones to display in the widget
SLOW! But if you can't put javascript code in a webpage this will call the widget from this website instead.
If "none" is selected then you will have to style the widget by yourself, you can use this CSS as an example.