A3 277 then EC 3654 at Athens
Chios → Athens → Milan
Timetable, Athens time
22:15A3 277 from Chios at the gate
22:05EC 3654 to Milan leaves the gate
23 h 50 apart on the timetable, overnight
EC 3654 leaves 23 h 50 after A3 277 arrives on the timetable: more than half a day, so not a connection we count.