Straight up, I work best under pressure. If I have any spare time, I tend to waste it, haha.
Despite not being a morning person, I definitely do think I get my best work done in the before noon. Even if I don't want to be productive, the results of that early morning effort just always seem better imo. Then when like 2pm - 3pm rolls around, I feel like I can't get anything done. Like my brain is so drained and no amount of coffee will get me out of that head fog. Even on my days off I find myself just being generally sleepy around that time. I usually get a second wind of motivation at night (ie: right now) but this is also the time when I'm most prone to anxiety, so I have to measure myself somewhat. If I end up sleeping, well good! If not, I will stew all night and eventually resign myself to being awake and work until dawn yet still somehow have nothing to show for it, lol.