KL 1500 then HV 6867 at Schiphol
Madrid → Amsterdam → Athens
Timetable, Amsterdam time
08:35KL 1500 from Madrid at the gatealso KQ 1698, DL 9631
07:00HV 6867 to Athens leaves the gate
22 h 25 apart on the timetable, overnight
HV 6867 leaves 22 h 25 after KL 1500 arrives on the timetable: more than half a day, so not a connection we count.