BA 985 then BA 546 at Heathrow
Berlin → London → Bologna
Timetable, London time
19:30BA 985 from Berlin at the gate
18:25BA 546 to Bologna leaves the gate
22 h 55 apart on the timetable, overnight
BA 546 leaves 22 h 55 after BA 985 arrives on the timetable: more than half a day, so not a connection we count.