BA 1323 then BA 1420 at Heathrow
Aberdeen → London → Inverness
Timetable, London time
08:35BA 1323 from Aberdeen at the gate
07:40BA 1420 to Inverness leaves the gate
23 h 05 apart on the timetable, overnight
BA 1420 leaves 23 h 05 after BA 1323 arrives on the timetable: more than half a day, so not a connection we count.