'Week' in the Bible

But we ourselves sailed from Philippi after the days of Unleavened Bread, and five days later joined them in the Troad, where we remained for a week.

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.

Here we found brethren, who invited us to remain with them for a week; and so we reached Rome.