Okay, for the sake of argument, let's count Friday; we're still missing a night (as in three nights) are we not?
we aren’t missing a night if you understand the idiomatic expressions of the time period.
it’s if i tell my wife i am going to run to the 7-11 15 miles away and i’ll be back in a half hour. if i drive my car, did i “run” to the 7-11 or did i drive there or did i do both?