Most are taking 7 days here in Florida. If there is a test requirement, it depends on whether the test AND result have to be within a certain period, or only the result received within a certain period. My understanding is that Aruba is requiring test AND result within 72 hours and the CURRENT rule for SXM (which could change, as they have changed things about 5 times already) is that only the RESULT has to be within 72 hours.