Contest date and time in local times

HI, i can see the contest dates and times in EST, can it be done so that we can have custom date and time,
each time i have to visit a site to convert between timezones.
(http://www.timezoneconverter.com/cgi-bin/tzc.tzc)

lol, this thing is hot
https://addons.mozilla.org/en-US/firefox/addon/2286

but what is the calendar for the n :~/