I was honestly confused by the human sleep/wake cycle being tied to the local planetary time in Starfield. Humans evolved to be in (more or less) sync with our earth standard time scale (60 seconds to a minute, 60 minutes to an hour, 24 hours to one earth standard day, etc.). I am fairly certain that if/when we take to the stars, we will still be bound to our current earth standard time scale, no matter what the local planetary timescale happens to be.
Given that it's been a year (to the day) that WYSIWYG posted this, and there are still no mods (that I can find) that change the sleep/wake cycle to earth standard, I'm going to assume there is some kind of game code related issue that is keeping people from modifying the game to use earth standard sleep/wake cycles.