How long is a chipmunks memory?

obviously not too long as our Hamster, Sandy, goes into his "motel" every few seconds as if it was a new discovery every time!

I've conducted an experiment for my hamster Fran, who I tested once in the evening and once in the morning for 15 days straight, and rewarded her every time. She caught on almost immediately, and instead of taking a few minutes, she would take less than 20 seconds to complete the task. Even if i accidentally skipped one evening, she could still do the task the next morning, so I conclude that, if hamsters do something at least daily, they can remember something for at least 24 hours.

my hamster never bit me and me and my sis had a fight with me and she poured oil on my hamster and it always bites me now and the fght was like 2 weeks ago