A3 275 then A3 862 at Athens
Chios → Athens → Vienna
Timetable, Athens time
17:00A3 275 from Chios at the gate
16:20A3 862 to Vienna leaves the gate
23 h 20 apart on the timetable, overnight
A3 862 leaves 23 h 20 after A3 275 arrives on the timetable: more than half a day, so not a connection we count.