AA 56 then BA 572 at Heathrow
Miami → London → Milan Linate
Timetable, London time
12:05AA 56 from Miami at the gate
11:40BA 572 to Milan Linate leaves the gate
23 h 35 apart on the timetable, overnight
BA 572 leaves 23 h 35 after AA 56 arrives on the timetable: more than half a day, so not a connection we count.