'Nightfall' in the Bible

And at nightfall the two angels came to Sodom; and Lot was seated at the way into the town: and when he saw them he got up and came before them, falling down on his face to the earth.

The outcry of the children of Israel has come to my ears: say to them now, At nightfall you will have meat for your food, and in the morning bread in full measure; and you will see that I am the Lord your God.

In the first month, on the fourteenth day of the month at nightfall, is the Lord's Passover;

Let this be a Sabbath of special rest to you, and keep yourselves from all pleasure; on the ninth day of the month at nightfall from evening to evening, let this Sabbath be kept.

At nightfall, in the evening of the day, in the black dark of the night.

And it will be unbroken day, such as the Lord has knowledge of, without change of day and night, and even at nightfall it will be light.