ClockLink.com provides analog and digital clocks that you can easily embed in your web page with any time zone of the world. I can answer the question "What time is it in Cambodia?" without missing a beat.
This could be an interesting resource for teaching time zones for social studies or math teachers ... The world clock site made it easy to figure out what time zone Phnom Penh, Cambodia (GMT + 7:00). Then all I had to do was edit the script and paste it in to my post. Now, I'm all set to let people who visit Cambodia4kids know what time it is in Cambodia!