'Sundown' in the Bible

Keep it till the fourteenth day of the same month, when everyone who is of the children of Israel is to put it to death between sundown and dark.

But in the place marked out by the Lord your God as the resting-place of his name, there you are to put the Passover to death in the evening, at sundown, at that time of the year when you came out of Egypt.

But when evening comes near, let him take a bath: and after sundown he may come back to the tents.

And about sundown a cry went up from all parts of the army, saying, Let every man go back to his town and his country, for the king is dead.

But the fight became more violent while the day went on; and the king of Israel was supported in his war-carriage facing the Aramaeans till the evening; and by sundown he was dead.