Need help with Time Zones

Hello, i run the site http://radio.nintyshroom.com . It is a radio site so i have a schedule of what time live shows will be on. Many of my listeners are in differant time zones to me. I need a way to automatically display times on the schedule in the time zone of the person visiting the site. Is there any way i can do this?

[Bumping? After only 40 minutes? Seriously? If it’s that urgent, consider hiring someone.]