BA 941 then BA 566 at Heathrow
Düsseldorf → London → Milan Linate
Timetable, London time
07:45BA 941 from Düsseldorf at the gate
07:25BA 566 to Milan Linate leaves the gate
23 h 40 apart on the timetable, overnight
BA 566 leaves 23 h 40 after BA 941 arrives on the timetable: more than half a day, so not a connection we count.