OA 13 then EC 3656 at Athens
Naxos → Athens → Milan
Timetable, Athens time
11:55OA 13 from Naxos at the gate
11:10EC 3656 to Milan leaves the gate
23 h 15 apart on the timetable, overnight
EC 3656 leaves 23 h 15 after OA 13 arrives on the timetable: more than half a day, so not a connection we count.