Passage: Canberra was decommissioned on 7 March 1947 and berthed with the Pacific Reserve Fleet at the Puget Sound Naval Shipyard, located in Bremerton, Washington. Canberra and sister ship Boston were marked for conversion into guided missile heavy cruisers (Canberra was redesignated with the hull number CAG-2), and on 4 January 1952, she was towed to the New York Shipbuilding Corporation at Camden, New Jersey for conversion into a Boston-class cruiser.

Question: when was Canberra decommissioned?
7 March 1947