HV 6868 then BA 445 at Schiphol
Athens → Amsterdam → London Heathrow
Timetable, Amsterdam time
23:40HV 6868 from Athens at the gate
19:55BA 445 to London Heathrow leaves the gate
20 h 15 apart on the timetable, overnight
BA 445 leaves 20 h 15 after HV 6868 arrives on the timetable: more than half a day, so not a connection we count.