'Morning watch' in the Bible

and it cometh to pass, in the morning watch, that Jehovah looketh unto the camp of the Egyptians through the pillar of fire and of the cloud, and troubleth the camp of the Egyptians,

And it cometh to pass, on the morrow, that Saul putteth the people in three detachments, and they come into the midst of the camp in the morning-watch, and smite Ammon till the heat of the day; and it cometh to pass that those left are scattered, and there have not been left of them two together.