According to Open Culture, Ursula K. Le Guin had the best work schedule:
I don’t know the degree to which this routine “fueled her imagination” so much as it simply afforded her nearly five hours of uninterrupted time every day to actually write. And that’s not nothing.
With that in mind, I’ve come up with my own work schedule, which I’ll be submitting to the suits upstairs for approval and immediate implementation.
5:30 a.m.—wake up and lie there and think.
6:15 a.m.—get up and drink coffee (lots).
7:15 a.m.—arrive at the office and get to work writing, writing, writing.
Noon—constitutional.
1:00-3:00 p.m.—reading, music.
3:00-5:00 p.m.—email correspondence, tea, maybe meetings.
5:00-8:00 p.m.—Netflix and chill dinner.
After 8:00 p.m.—walk the dog and retire with a good book.
My back-of-the-envelope calculations indicate that this schedule will increase my productivity by a factor of 3 and the quality of my output by a factor of, well…it’s already pretty much optimal, so I don’t want to make any promises.