BA 581 then BA 1332 at Heathrow
Milan → London → Newcastle
Timetable, London time
13:25BA 581 from Milan at the gate
12:55BA 1332 to Newcastle leaves the gate
23 h 30 apart on the timetable, overnight
BA 1332 leaves 23 h 30 after BA 581 arrives on the timetable: more than half a day, so not a connection we count.