Check the time zone converter. Without double checking, I believe the whole thing starts in over nine hours. (EDIT: Art beat me to it.
)
Alternately, on the bottom on this page you should see "All times are GMT +/-n. The time now is xx:yy AM/PM." message. Knowing than Telltale chat begins at 5 PM GMT, you can do the math yourself.
Also (and keep this in mind should you choose to participate in the chat), this is a forum, not an IRC, try giving people more than 20 minutes to respond.
