Night Shift? In deep space? Isn't that sort of like "up" and "down" in deep space, that is, arbitrary?
And yes, I have TWO comedy videos on my website entitled, Night Shift, but that's COMEDY.
Folks probably remember this dialogue from "The Conscience of the King:"
LENORE: Did you order the soft lights especially for the occasion?
KIRK: If I had ordered soft lights, I'd also have arranged for music and flowers. Unfortunately, it isn't so. On the Enterprise
, we try to duplicate earth conditions of night and day as closely as possible.
So, yes, there's "day" and "night" on the Enterprise