BA 34 then BA 350 at Heathrow
Kuala Lumpur → London → Nice
Timetable, London time
05:20BA 34 from Kuala Lumpur at the gate
17:30BA 350 to Nice leaves the gate
12 h 10 apart on the timetable
BA 350 leaves 12 h 10 after BA 34 arrives on the timetable: more than half a day, so not a connection we count.