Ex 12:
BDB:
a. of end of night
b. implying the coming of dawn
c. of coming of sunrise
After midnight, before dawn.
I.e., after midnight but before the morning light.21 Then Moses called all the elders of Israel and said to them, “Go and select lambs for yourselves according to your clans, and kill the Passover lamb. 22 Take a bunch of hyssop and dip it in the blood that is in the basin, and touch the lintel and the two doorposts with the blood that is in the basin. None of you shall go out of the door of his house until the morning
BDB:
a. of end of night
b. implying the coming of dawn
c. of coming of sunrise
29a At midnight the LORD struck down all the firstborn in the land of Egypt.
31 Then [Pharaoh] summoned Moses and Aaron by night and said, “Up, go out from among my people, both you and the people of Israel; and go, serve the LORD, as you have said. 32 Take your flocks and your herds, as you have said, and be gone, and bless me also!”
What time did the Israelites start to leave Egypt?33 The Egyptians were urgent with the people to send them out of the land in haste. For they said, “We shall all be dead.”
After midnight, before dawn.