KL 9936 then HV 6865 at Schiphol
Forli → Amsterdam → Athens
Timetable, Amsterdam time
21:22KL 9936 from Forli at the gate
18:40HV 6865 to Athens leaves the gate
21 h 18 apart on the timetable, overnight
HV 6865 leaves 21 h 18 after KL 9936 arrives on the timetable: more than half a day, so not a connection we count.