We talked about this on Voxer a couple of weeks ago but I'm just now posting it so we don't forget.
The trade deadline will be one week before the first conference tournament. The deadline will be Thursday, Feb 20th at midnight central time. This way there will be one trade free week before conference week starts.
Any and all trades must be posted on TWT before midnight on the 20th. Voxer messages do not count as official trades.