Saturdays, 7 PM - 8:30 PM, US Central Standard Time
Sundays, 11 AM - 12:30 PM, US Central Standard Time
I just sent out an email to everyone on the list. If you did not get the email and want to be on the list, send me your email address via private message.
Here is a link to a world time zone map -- so that you can figure out, for example, if you live in the UK, you're 6 hours ahead of US Central Standard Time.