What times do Nook's turnip prices change?

[Jeremy]

I know they change at noon and midnight. Any other times you know of?

 

[JOM]

They change at midnight? I was not aware of that...

 

[Ryudo Dragoon]

At midnight nook is closed so why would that matter? Do you mean noon???

 

[Jeremy]

At midnight nook is closed so why would that matter? Do you mean noon???

Um... Nook n' Go doesn't close until 1AM.

Do I mean noon? I said both noon and midnight in the same sentence meaning both... uh.... o.o