KL 1708 then HV 6867 at Schiphol
Luxembourg → Amsterdam → Athens
Timetable, Amsterdam time
07:15KL 1708 from Luxembourg at the gate
06:55HV 6867 to Athens leaves the gate
23 h 40 apart on the timetable, overnight
HV 6867 leaves 23 h 40 after KL 1708 arrives on the timetable: more than half a day, so not a connection we count.