The driver of every hackney carriage which shall ply for hire at any place within the limits of this Act shall (unless such driver have a reasonable excuse, to be allowed by the justice before whom the matter shall be brought in question,) drive such hackney carriage to any place to which he shall be required by the hirer thereof to drive the same, not exceeding six miles from the place where the same shall have been hired, or for any time not exceeding one hour from the time when hired: . . . F1.