A3 255 then A3 318 at Athens
Mytilene → Athens → Heraklion
Timetable, Athens time
17:00A3 255 from Mytilene at the gate
16:50A3 318 to Heraklion leaves the gate
23 h 50 apart on the timetable, overnight
A3 318 leaves 23 h 50 after A3 255 arrives on the timetable: more than half a day, so not a connection we count.