BA 961 then BA 358 at Heathrow
Hamburg → London → Lyon
Timetable, London time
12:20BA 961 from Hamburg at the gate
09:25BA 358 to Lyon leaves the gate
21 h 05 apart on the timetable, overnight
BA 358 leaves 21 h 05 after BA 961 arrives on the timetable: more than half a day, so not a connection we count.