BA 547 then BA 1364 at Heathrow
Bologna → London → Manchester
Timetable, London time
09:05BA 547 from Bologna at the gate
08:40BA 1364 to Manchester leaves the gate
23 h 35 apart on the timetable, overnight
BA 1364 leaves 23 h 35 after BA 547 arrives on the timetable: more than half a day, so not a connection we count.