[samratjp]

Here's an under rated reason - a night owl's schedule! Tech startup founders and early teams get most of their shit done at night when there are fewer or no distractions. When you're on this schedule, the city life is much more accommodating in terms of food, socialization, etc. Then suddenly, dinner time is suddenly like lunch time.

[Firehed]

Living in a city does not lend itself well to getting stuff done at night "when there are no distractions" precisely because those environments provide those nighttime distractions.

Early founder schedules tend to be necessarily isolating. Once you're to the point of having employees and semi-sane work hours, then the rest tends to be personal preference because you can once again coexist with the rest of the world.