I'm in the stand 15 - 30 minutes prior to daylight. Any longer, it bores the hell out of me just sitting in the dark, and can make me want to fall back asleep.

On days leading up to and on a full moon, I will not get to the stand earlier than 8 a.m., sometimes even waiting until about 10 a.m. I will not waste my time on a full moon, early morning hunt anymore. I wait until mid-morning.