I understand that you’re looking for a 1 day weekend guild, but wanted to drop a note anyway in case you reconsider 
We are a newly re-formed guild that will focus on mythic raiding and pushing CE as soon as we can fill out our roster and get everyone geared up. In the mean time, we are organizing Heroic PUGs during our normal raiding hours of Thursday & Monday 8-11pm Eastern. Try us out for a night. My contact information can be found here: