BA 371 then BA 358 at Heathrow
Toulouse → London → Lyon
Timetable, London time
13:15BA 371 from Toulouse at the gate
10:55BA 358 to Lyon leaves the gate
21 h 40 apart on the timetable, overnight
BA 358 leaves 21 h 40 after BA 371 arrives on the timetable: more than half a day, so not a connection we count.