The episode starts with 6 a.m. being Hour 1. At Hour 13, 7 p.m. there's plenty of light left, and some light left at Hour 14, 8 p.m. of the 1st day. Yet, at Hour 37, 7 p.m. of the 2nd day, it's dark.
In one scene (at 36:00), Connie is wearing a hearing aid and in the next shot, it's gone.