'Middle' in the Bible

But about the middle of the night, Paul and Silas were making prayers and songs to God in the hearing of the prisoners;

And on the first day of the week, when we had come together for the holy meal, Paul gave them a talk, for it was his purpose to go away on the day after; and he went on talking till after the middle of the night.

And it came about that while I was on my journey, coming near to Damascus, about the middle of the day, suddenly I saw a great light from heaven shining round me.

In the middle of the day, on the road I saw a light from heaven, brighter than the sun, shining round me and those who were journeying with me.

But when the fourteenth day came, while we were going here and there in the Adriatic sea, about the middle of the night the sailors had an idea that they were getting near land;