World of Card Games will be down for about 4 hours starting Saturday, December 13, from 9:45 PM CST until Sunday, December 14, 2 AM CST. Here's a link to the time window in worldtimebuddy:
scheduled downtime.
The outage is due to my server being moved, so it's not something that I have any control over. If the site is up any earlier than planned, or if there is any delay, I'll post a note here.