A3 275 then GQ 840 at Athens
Chios → Athens → Vienna
Timetable, Athens time
17:00A3 275 from Chios at the gate
15:35GQ 840 to Vienna leaves the gate
22 h 35 apart on the timetable, overnight
GQ 840 leaves 22 h 35 after A3 275 arrives on the timetable: more than half a day, so not a connection we count.