BA 541 then BA 314 at Heathrow
Bologna → London → Paris Charles de Gaulle
Timetable, London time
15:35BA 541 from Bologna at the gate
15:15BA 314 to Paris Charles de Gaulle leaves the gate
23 h 40 apart on the timetable, overnight
BA 314 leaves 23 h 40 after BA 541 arrives on the timetable: more than half a day, so not a connection we count.