My gun is loaded till 1pm on public land. If I am having an incredibly crappy day I may take it in early. I hate hunting on extremely windy days so I may pack it in early on those days. Otherwise, I hunt as long as legally possible.
I have even left work after working a 12 night shift and hunted till 1pm. Having a WMA just a few miles away helps. I just need to make sure they never do a parking lot check for guns at work!