BA 773 then BA 940 at Heathrow
Oslo → London → Düsseldorf
Timetable, London time
22:00BA 773 from Oslo at the gate
19:35BA 940 to Düsseldorf leaves the gate
21 h 35 apart on the timetable, overnight
BA 940 leaves 21 h 35 after BA 773 arrives on the timetable: more than half a day, so not a connection we count.