Man, I don’t know. I’m aware of a scenario where two people were exposed at the same event. They both got tested, one of them was negative initially, but later tested positive, once he had symptoms. This was all within 7 days of exposure.
Further, CDC indicates a range of 2 - 14 days, with a median of 5 - 6 days.
https://www.cdc.gov/coronavirus/2019-ncov/symptoms-testing/symptoms.html