Journey of Israel Through The Desert: Date of Its Commencement
Source: TTT
Exodus 12:41, 42
At the end of the 430 years, to the very day, all the LORD’s divisions went out of the land of Egypt. / Because the LORD kept a vigil that night to bring them out of the land of Egypt, this same night is to be a vigil to the LORD, to be observed by all the Israelites for the generations to come.