KL 1600 then HV 6867 at Schiphol
Rome → Amsterdam → Athens
Timetable, Amsterdam time
08:40KL 1600 from Rome at the gate
07:00HV 6867 to Athens leaves the gate
22 h 20 apart on the timetable, overnight
HV 6867 leaves 22 h 20 after KL 1600 arrives on the timetable: more than half a day, so not a connection we count.