BA 1369 then BA 762 at Heathrow
Manchester → London → Basel
Timetable, London time
16:05BA 1369 from Manchester at the gate
16:00BA 762 to Basel leaves the gate
23 h 55 apart on the timetable, overnight
BA 762 leaves 23 h 55 after BA 1369 arrives on the timetable: more than half a day, so not a connection we count.