BA 1323 then BA 580 at Heathrow
Aberdeen → London → Milan
Timetable, London time
08:00BA 1323 from Aberdeen at the gate
07:35BA 580 to Milan leaves the gate
23 h 35 apart on the timetable, overnight
BA 580 leaves 23 h 35 after BA 1323 arrives on the timetable: more than half a day, so not a connection we count.