BA 867 then BA 1312 at Heathrow
Budapest → London → Aberdeen
Timetable, London time
14:15BA 867 from Budapest at the gate
14:10BA 1312 to Aberdeen leaves the gate
23 h 55 apart on the timetable, overnight
BA 1312 leaves 23 h 55 after BA 867 arrives on the timetable: more than half a day, so not a connection we count.