5 spots left in a redraft league on Yahoo.$15 buy in

Payment due the 25th. Draft on September 1st. Standard scoring.
1 qb
2 rb
2 wr
1 te
1 flex
1 k
1 def
7 bench

What time on Sep 1 since it’s the long weekend. Also standard waivers?

10:30 pm EDT and yes standard