'Night' in the Bible

So he sent there horses and carriages and a great army; and they came by night, circling the town.

Then the king got up in the night and said to his servants, This is my idea of what the Aramaeans have done to us. They have knowledge that we are without food; and so they have gone out of their tents, and are waiting secretly in the open country, saying, When they come out of the town, we will take them living and get into the town.

Then Joram went over to Zair, with all his war-carriages; ... made an attack by night on the Edomites, whose forces were all round him, ... the captains of the war-carriages; and the people went in flight to their tents.

And that night the angel of the Lord went out and put to death in the army of the Assyrians a hundred and eighty-five thousand men; and when the people got up early in the morning, there was nothing to be seen but dead bodies.

So an opening was made in the wall of the town, and all the men of war went in flight by night through the doorway between the two walls which was by the king's garden; (now the Chaldaeans were stationed round the town:) and the king went by the way of the Arabah.