BA 753 then AA 731 at Heathrow
Geneva → London → Charlotte
Timetable, London time
10:00BA 753 from Geneva at the gate
09:55AA 731 to Charlotte leaves the gate
23 h 55 apart on the timetable, overnight
AA 731 leaves 23 h 55 after BA 753 arrives on the timetable: more than half a day, so not a connection we count.