It's funny how much people try to assign tasks to certain times of day based on what they think they should be doing then, rather than what's most naturally fitting. A lot of people assert that the best time for writing is the early morning. I have yet to figure out if that's really true or if it's just the only time of day when in theory you won't be distracted from the rest of the world.
When I was working my first job out of college at FilmNation Entertainment (2013-2015), I was working from 8AM - 9PM most days and attempting to exercise to stay sane before work. But eventually I decided I needed to be writing every day, so for a block of about 4-5 months I forced myself to write from 4AM-6:30AM at least every other day. And you know what? It actually worked pretty well. I was drinking more coffee than should be humanly possible, but I also wrote my first pilot pretty quickly - all things considered. Nowadays, I struggle to get up at 6AM and really get to work writing productively before 8AM. Is it just because I'm older? Or because I don't have the immense pressure of that day job driving me anymore? Or are my circadian rhythms changing? I fear that this trend will continue to slide until I'm only writing well late at night, and destroying my sleep from the other side of the coin.
All this makes me wonder, if writing rhythms aren't related to anything biologically speaking but instead draw on some sort of self-tricked Pavlovian stimulus. For me, back in NY, it was the thrill of being up during the dark of the early morning and knowing this was my one true window to get anything done (that I enjoyed doing). There was a bit of a sick thrill to it, probably a little masochistic too. I imagine it's the same for writers who can only write late at night -- the idea that you're throwing responsibility to the wind all for the sake of your craft, you're doing something no one else is... The followup question is: if the same writer were to only write during these strange times vs. a copy of him to only write like a normal human being during the day's work hours - would the products be completely different?