BA 931 then BA 770 at Heathrow
Düsseldorf → London → Oslo
Timetable, London time
11:00BA 931 from Düsseldorf at the gate
10:30BA 770 to Oslo leaves the gate
23 h 30 apart on the timetable, overnight
BA 770 leaves 23 h 30 after BA 931 arrives on the timetable: more than half a day, so not a connection we count.