Midnight, and buildings close at 10.
11pm
The fair itself closed at 11 pm but individual vendors may close earlier
It's already finished for the season
12 buildings at 10
9pm Sept 5th 2022
Building at 10, fair at 12 in Sundays
10pm
They start closing down events around 9pm with exception of concerts.
All I know is they stop letting patrons in on admission or re-admission at 10pm.
Horticultural closes at 10 pm
Thanks! Your answer is awaiting moderation.