I used to be ready b/4 it got light enough to see. I scared a lot of deer going in and it never really worked in my favor. Now I like to slip in quietly when it's just light enough to see. I stay until around 10 most days. I get out get a bite to eat, maybe shoot a few arrows, set a stand or do a little scouting or rest a while. I'm usually back out by 2. Sometimes I sit all day. I don't do that all the time because I get burnt out doing it every day. During rifle season I stay all day.