When was the Jet’ (Turbo) airline service inaugurated?

When was the Jet’ (Turbo) airline service inaugurated? What was the record time set by the Jet service run between New York and London?

Air Services-Jet

The first JET (TURBO) AIRLINE SERVICE was inaugurated by BOAC with the flight of a de Havilland Comet from London to Johannesburg (6,724 miles) in 23 hr 34 min on 2-3 May 1952.

The first jet services across the North Atlantic were flown between London and New York by BOAC Comet 4, G-APDC (pilot Capt. R.E. Millichap), and from New York to London by BOAC Comet 4, G-APDB (pilot Capt. T.B. Stoney), both on 4 October 1958. The NY-London run established a new Atlantic record of 6 hr 11 min. The fare was £ 279 15 s.