BA 935 then BA 746 at Heathrow
Düsseldorf → London → Geneva
Timetable, London time
16:20BA 935 from Düsseldorf at the gate
10:30BA 746 to Geneva leaves the gate
18 h 10 apart on the timetable, overnight
BA 746 leaves 18 h 10 after BA 935 arrives on the timetable: more than half a day, so not a connection we count.