Originally Posted by
Cymro
Nope, status applies as at the time of checkin.
Although....
...On April 1 I dropped from Gold to Silver. I happened to be checking in to a DT on the 1st, and prior to flying out, I saw on HHonors.com that my status had changed. When I checked in, I was given a packet with breakfast coupons and internet code and thanked for being a Gold member. Perhaps they processed the check-in the night before?