BA 371 then AA 733 at Heathrow
Toulouse → London → Charlotte
Timetable, London time
12:05BA 371 from Toulouse at the gate
11:45AA 733 to Charlotte leaves the gate
23 h 40 apart on the timetable, overnight
AA 733 leaves 23 h 40 after BA 371 arrives on the timetable: more than half a day, so not a connection we count.