Can anyone prove it is wrong? Thanks for insight!
I suggest that stating a wild notion that isn't well specified and then saying to prove it wrong is not a path to understanding.
Night is a term humans use to describe the period when the position in question on the celestial body in question is rotated away from the sun. Usually that position is where the person happens to be and on the earth, but occasionally you hear discussion of the Martian Night and so on.
Darkness is the way we describe the environmental condition of our retinas not receiving (or where they would not receive) sufficient stimulation to discern our surroundings (whether we are present or not).