Didn't Costco used to open at 9am for Executive members?

Official is 10, or 9: 30 on Saturday. Unofficially, the doors usually open about 15 minutes early on any given day. I don't think there's a distinction any more between exec and regular opening time.

Yes, they did used to. I’d say early 1990s. Used to go there b4 I opened the office.

Don't think so. Think it was always 10 am.

I think so