'Night' in the Bible

Command Aaron and his sons, saying, This is a law of the burnt-offering (it is the burnt-offering, because of the burning on the altar all the night unto the morning, and the fire of the altar is burning on it,)

and at the opening of the tent of meeting ye abide, by day and by night seven days, and ye have kept the charge of Jehovah, and die not, for so I have been commanded.'