A3 245 then GQ 830 at Athens
Samos → Athens → Milan
Timetable, Athens time
11:30A3 245 from Samos at the gate
08:00GQ 830 to Milan leaves the gate
20 h 30 apart on the timetable, overnight
GQ 830 leaves 20 h 30 after A3 245 arrives on the timetable: more than half a day, so not a connection we count.