BA 371 then BA 281 at Heathrow
Toulouse → London → Los Angeles
Timetable, London time
13:15BA 371 from Toulouse at the gate
12:30BA 281 to Los Angeles leaves the gate
23 h 15 apart on the timetable, overnight
BA 281 leaves 23 h 15 after BA 371 arrives on the timetable: more than half a day, so not a connection we count.