I've used GNOME intlclock with GNOME panel with other distros and is it possible to install it on Mint? I really like the integrated timezone locations with weather conditions.
I did not find a package called intlclock You can add that to Firefox - I've got a weather applet in the status bar called 1-ClickWeather and you can find clock applets too
Don't fix it if it ain't broken, don't break it if you can't fix it
I figured out it requires GNOME 2.22 and currently Mint doesn't support it yet. I was reading the Mint Blog and its due to be part of the version 5 release in May. Cool