GQ 231 then GQ 310 at Athens
Mykonos → Athens → Samos
Timetable, Athens time
12:30GQ 231 from Mykonos at the gate
10:30GQ 310 to Samos leaves the gate
22 h apart on the timetable, overnight
GQ 310 leaves 22 h after GQ 231 arrives on the timetable: more than half a day, so not a connection we count.