PY 994 then KL 1953 at Schiphol
Zandery → Amsterdam → Athens
Timetable, Amsterdam time
12:00PY 994 from Zandery at the gate
08:25KL 1953 to Athens leaves the gate
20 h 25 apart on the timetable, overnight
KL 1953 leaves 20 h 25 after PY 994 arrives on the timetable: more than half a day, so not a connection we count.