BA 573 then BA 1458 at Heathrow
Milan Linate → London → Edinburgh
Timetable, London time
17:35BA 573 from Milan Linate at the gate
17:10BA 1458 to Edinburgh leaves the gate
23 h 35 apart on the timetable, overnight
BA 1458 leaves 23 h 35 after BA 573 arrives on the timetable: more than half a day, so not a connection we count.