'Midnight' in the Bible

About midnight Paul and Silas were praying and singing hymns to God, and the prisoners were listening to them,

On the first day of the week, when we had met to break bread, Paul, who was going away the next morning, was preaching to them, and prolonged his discourse till midnight.

It was now the fourteenth night, and we were drifting through the Sea of Adria, when, about midnight, the sailors suspected that land was close at hand.