Prince Edward, Duke of Kent, who
was “Commander-in-Chief” of military forces in British North
America at the time, is credited with having arranged for the
manufacture (and erection) of a turret clock in an attempt to
reduce the tardiness of the local garrison. It was erected, on
the east slope of Citadel Hill (Halifax Nova Scotia) in 1803.

http://en.wikipedia.org/wiki/Prince_Edward,_Duke_of_Kent_and_Strathearn