Travel from London - Hong Kong - Shanghai - London

Please can you advise if I would be eligible for the visa exception, I am looking at the following flights:

London - Hong Kong (Leaving 28th October 18:40 / Arriving 29th October 13:35)
Hong Kong - Shanghai (Leaving 1st November 12:50 / Arriving 1st November 15:25)
Shanghai - London (Leaving 6th November 10:55 / Arriving 6th November 16:00)