KL 1964 then HV 6867 at Schiphol
Zagreb → Amsterdam → Athens
Timetable, Amsterdam time
08:45KL 1964 from Zagreb at the gate
07:00HV 6867 to Athens leaves the gate
22 h 15 apart on the timetable, overnight
HV 6867 leaves 22 h 15 after KL 1964 arrives on the timetable: more than half a day, so not a connection we count.