'Dusk' in the Bible

At dusk, when it was time to close the city gates, the men left. I don't know where the men went. Go after them quickly, and you might overtake them."

He hanged the king of Ai on a tree until dusk, and at sunset Joshua ordered his body brought down from the tree and laid at the entrance to the gate of the town. There he raised over it a large mound of stones, which stands there to this day.