BA 713 then BA 1452 at Heathrow
Zurich → London → Edinburgh
Timetable, London time
14:30BA 713 from Zurich at the gate
13:50BA 1452 to Edinburgh leaves the gate
23 h 20 apart on the timetable, overnight
BA 1452 leaves 23 h 20 after BA 713 arrives on the timetable: more than half a day, so not a connection we count.