That reminds me of how in the Northeast they say "Quarter of [hour]" whereas in the Midwest it's "Quarter after [hour]". The former confuses me every time, with my immediate thought being "is 'of' before or after"? My wife, who is from the Northeast, just confirmed it's "before"
Edit: I mistyped my comment as "after". The replies are justified.
Edit: I mistyped my comment as "after". The replies are justified.