When do you call to confirm Monday auctions?

Every now and then there will be an auction scheduled at 9:00 AM on a Monday morning. Since most storage facilities don't open until 9:00 AM, it makes it impossible to confirm the auction that morning. In situations like this, do you call the facility on the Saturday before the auction?

I typically roll the dice on those. Going from Sat-Mon is a long time when you're making a payment. Most facilities offer online bill pay or have a call center for that over the weekend.

I'll usually roll the dice as well. Sometime it's hard to remember to call a storage facility on a Saturday, especially since Saturdays are usually a storage unit buyer's busiest day (garage sales, flea markets, etc.)