BA 941 then BA 540 at Heathrow
Düsseldorf → London → Bologna
Timetable, London time
09:30BA 941 from Düsseldorf at the gate
08:05BA 540 to Bologna leaves the gate
22 h 35 apart on the timetable, overnight
BA 540 leaves 22 h 35 after BA 941 arrives on the timetable: more than half a day, so not a connection we count.