HV 6867 then BA 635 at Athens
Amsterdam → Athens → London Heathrow
Timetable, Athens time
20:00HV 6867 from Amsterdam at the gate
16:45BA 635 to London Heathrow leaves the gate
20 h 45 apart on the timetable, overnight
BA 635 leaves 20 h 45 after HV 6867 arrives on the timetable: more than half a day, so not a connection we count.