A3 307 then A3 868 at Athens
Heraklion → Athens → Krakow
Timetable, Athens time
12:20A3 307 from Heraklion at the gate
11:00A3 868 to Krakow leaves the gate
22 h 40 apart on the timetable, overnight
A3 868 leaves 22 h 40 after A3 307 arrives on the timetable: more than half a day, so not a connection we count.