'Night' in the Bible

And each of the four living creatures had six wings, and in every direction, and within, are full of eyes; and day after day, and night after night, they never cease saying, "Holy, holy, holy, Lord God, the Ruler of all, who wast and art and evermore shalt be."

For this reason they stand before the very throne of God, and render Him service, day after day and night after night, in His sanctuary, and He who is sitting upon the throne will shelter them in His tent.

Then the fourth angel blew his trumpet; and a curse fell upon a third part of the sun, a third part of the moon, and a third part of the stars, so that a third part of them were darkened and for a third of the day, and also of the night, there was no light.

Then I heard a loud voice speaking in Heaven. It said, "The salvation and the power and the Kingdom of our God have now come, and the sovereignty of His Christ; for the accuser of our brethren has been hurled down--he who, day after day and night after night, was wont to accuse them in the presence of God.

And the smoke of their torment goes up until the Ages of the Ages; and the worshipers of the Wild Beast and his statue have no rest day or night, nor has any one who receives the mark of his name.

and the Devil, who had been leading them astray, was thrown into the Lake of fire and sulphur where the Wild Beast and the false Prophet were, and day and night they will suffer torture until the Ages of the Ages.

And in the daytime (for there will be no night there)

And there will be no night there; and they have no need of lamplight or sunlight, for the Lord God will shine upon them, and they will be kings until the Ages of the Ages."