GQ 311 then A3 4034 at Athens
Samos → Athens → Madrid
Timetable, Athens time
19:00GQ 311 from Samos at the gate
17:00A3 4034 to Madrid leaves the gate
22 h apart on the timetable, overnight
A3 4034 leaves 22 h after GQ 311 arrives on the timetable: more than half a day, so not a connection we count.