BA 807 then BA 716 at Heathrow
Copenhagen → London → Zurich
Timetable, London time
12:50BA 807 from Copenhagen at the gate
12:40BA 716 to Zurich leaves the gate
23 h 50 apart on the timetable, overnight
BA 716 leaves 23 h 50 after BA 807 arrives on the timetable: more than half a day, so not a connection we count.