You can contact the DM team by sending an email to escapefromunderdark@gmail.com. You can contact any individual DM either on IRC (#efu on darkmyst) or via PMs on the forum.
The following is a rough list of the approximate playing times for the DM team. Keep in mind that this is subject to considerable variation. I'll leave it up to the other DMs to keep their entries here up to date:
- Howland -- Evening and late night EST.
Nuclear Catastrophe -- European times.
Arkov -- Late night PST.
Thrawn -- US Evenings, weekends, sometimes mornings.
Metropakt -- Hopelessly Variable
Ladocicea -- roughly 5PM to 11PM GMT
Mr. Cheez-It - Between 10:00PM and 1:00AM, EST.