BA 353 then BA 946 at Heathrow
Nice → London → Munich
Timetable, London time
09:35BA 353 from Nice at the gate
09:15BA 946 to Munich leaves the gate
23 h 40 apart on the timetable, overnight
BA 946 leaves 23 h 40 after BA 353 arrives on the timetable: more than half a day, so not a connection we count.