A3 317 then SN 3246 at Athens
Heraklion → Athens → Brussels
Timetable, Athens time
14:30A3 317 from Heraklion at the gate
12:05SN 3246 to Brussels leaves the gate
21 h 35 apart on the timetable, overnight
SN 3246 leaves 21 h 35 after A3 317 arrives on the timetable: more than half a day, so not a connection we count.