BA 941 then BA 592 at Heathrow
Düsseldorf → London → Venezia
Timetable, London time
09:30BA 941 from Düsseldorf at the gate
07:55BA 592 to Venezia leaves the gate
22 h 25 apart on the timetable, overnight
BA 592 leaves 22 h 25 after BA 941 arrives on the timetable: more than half a day, so not a connection we count.