Im unprepared to give this answer as never tested.
BUT this often happens with boats and trucks that are too big to paint inside.
From myself, I am dealing with the painters that paint outside.
The door handle level and down everything is the same as UVs do not bend
Flat surfaces door handle level up two days, 3rd day scuff, 4th day respray.
Im basing all this info on dealing with painters as I never tested but knowing how the epoxy cures and my safety built-in
This is a pretty safe bet.
UVs are different in SW and SE than North so
You are getting shortchanged a little.