I'll sit all day if I think I'm in a good position, and I have all day to hunt (rare). Usually, with work and other obligations, I only get to do morning hunts or evening hunts. Almost never both in the same day. BUT, when I do, I'm not averse to sitting dark-to-dark if I have some food and a drink. The colder it gets, the harder it gets, because you get cold and HUNGRY.