BA 851 then BA 932 at Heathrow
Warsaw → London → Düsseldorf
Timetable, London time
09:25BA 851 from Warsaw at the gate
09:15BA 932 to Düsseldorf leaves the gate
23 h 50 apart on the timetable, overnight
BA 932 leaves 23 h 50 after BA 851 arrives on the timetable: more than half a day, so not a connection we count.