Reference: Watches of the Night
Fausets
The Jews reckoned three military watches: the "first" or beginning of the watches (La 2:19), from sunset to ten o'clock; the second or "middle watch" was from ten until two o'clock (Jg 7:19); the third, "the morning watch," from two to sunrise (Ex 14:24; 1Sa 11:11). Afterward under the Romans they had four watches (Mt 14:25): Lu 12:38, "even, midnight, cockcrowing, and morning" (Mr 13:35); ending respectively at 9 p.m., midnight, 3 a.m., and 6 a.m. (compare Ac 12:4.) Watchmen patrolled the streets (Song 3:3; 5:7; Ps 127:1).
See Verses Found in Dictionary
And it came to pass that in the morning watch the LORD looked at the camp of the Egyptians in the pillar of fire and of cloud and troubled the camp of the Egyptians
So Gideon and the hundred men that were with him came unto the outside of the camp in the beginning of the middle watch when only the guards were awake, and they blew the shofarot and broke the pitchers that were in their hands.
Unless the LORD builds the house, they labour in vain that build it; unless the LORD keeps the city, the watchmen watch in vain.
The watchmen that go about the city found me, to whom I said, Have ye seen him whom my soul loves?
The watchmen that went about the city found me, they smote me, they wounded me; the keepers of the walls took away my outer cloak from me.
Koph Arise, cry out in the night; in the beginning of the watches; pour out thine heart like water before the face of the Lord; lift up thy hands toward him for the life of thy young children that faint for hunger in the top of every street.
And in the fourth watch of the night, Jesus went unto them, walking upon the sea.
Watch ye therefore, for ye know not when the Lord of the house comes: at evening or at midnight or at the cockcrowing or in the morning,
And if he shall come in the second watch or come in the third watch and find them so, blessed are those slaves.
And when he had apprehended him, he put him in prison and delivered him to four quaternions of soldiers to keep him, intending after the Passover to bring him forth to the people.