To some extent, it depends on a number of factors. Personal inclination/temperament, time zone dislocation, nature of one's job, and/or job changes, and what degree of personal autonomy you have over your work hours and so on.
My personal preference is to work late (say around 8pm to 2 am) especially when writing, researching, planing material or editing and I have done that for long periods of time. However, my time is not always my own, especially now, when I am working to timetables not of my devising.
Cheers