In my experience, the theory that deer only move early or late, comes from the hunters that don't want to hunt the timber. They just want to glass across canyons at open hillsides and meadows and that is when the animals will be there. Animals especially in the fall going into winter tend to feed as much as they can to put on fat. Can't do that from a bed very easily, can be done but its going to be a snack only. If you hunt the timber you will see animals all hours of the day.