BA 1349 then BA 574 at Heathrow
Saint Helier → London → Milan Linate
Timetable, London time
16:20BA 1349 from Saint Helier at the gate
14:40BA 574 to Milan Linate leaves the gate
22 h 20 apart on the timetable, overnight
BA 574 leaves 22 h 20 after BA 1349 arrives on the timetable: more than half a day, so not a connection we count.