BA 929 then EW 9469 at Heathrow
Hannover → London → Düsseldorf
Timetable, London time
20:10BA 929 from Hannover at the gate
19:30EW 9469 to Düsseldorf leaves the gate
23 h 20 apart on the timetable, overnight
EW 9469 leaves 23 h 20 after BA 929 arrives on the timetable: more than half a day, so not a connection we count.