A3 735 then A3 316 at Athens
Tunis → Athens → Heraklion
Timetable, Athens time
18:45A3 735 from Tunis at the gate
15:30A3 316 to Heraklion leaves the gate
20 h 45 apart on the timetable, overnight
A3 316 leaves 20 h 45 after A3 735 arrives on the timetable: more than half a day, so not a connection we count.