BA 935 then BA 990 at Heathrow
Düsseldorf → London → Berlin
Timetable, London time
16:20BA 935 from Düsseldorf at the gate
16:00BA 990 to Berlin leaves the gate
23 h 40 apart on the timetable, overnight
BA 990 leaves 23 h 40 after BA 935 arrives on the timetable: more than half a day, so not a connection we count.