HV 6867 then BA 633 at Athens
Amsterdam → Athens → London Heathrow
Timetable, Athens time
19:40HV 6867 from Amsterdam at the gate
15:10BA 633 to London Heathrow leaves the gate
19 h 30 apart on the timetable, overnight
BA 633 leaves 19 h 30 after HV 6867 arrives on the timetable: more than half a day, so not a connection we count.