That’s funny, around Tahoe we call it “Tahoe time”. It’s really normal for people to be late here. It’s not taken as personally as other areas I’ve lived in. It’s something about that lake..
Amusingly, a lot of these terms seem to have their origin in people who were really annoyed by the phenomena.
Certainly seems like that to me. I've arrived at wedding functions at the exact time mentioned in the invite and even the hosts weren't present. I had to wait 30 min for them to show up.