So i am doing the challenge where i play my game till new horizon comes out. I realized my date was wrong on my ds i was a month a head and now i time traveled backwards a month. Did i screw up my town on its time and stuff especially updating my shops?
^^^ what ably.saucey said. whenever you time travel backwards, it counts as one day, but when you time travel forwards, it actually coordinates with time.
Like what everyone said above! The only thing that could possibly be messed up is the time stamps on your town tree, but that really only depends on how far ahead you were and what happened during that time.