KL 1352 then HV 6867 at Schiphol
Prague → Amsterdam → Athens
Timetable, Amsterdam time
10:35KL 1352 from Prague at the gate
06:55HV 6867 to Athens leaves the gate
20 h 20 apart on the timetable, overnight
HV 6867 leaves 20 h 20 after KL 1352 arrives on the timetable: more than half a day, so not a connection we count.