GQ 285 then GQ 670 at Athens
Rhodes → Athens → Istanbul
Timetable, Athens time
22:40GQ 285 from Rhodes at the gate
19:15GQ 670 to Istanbul leaves the gate
20 h 35 apart on the timetable, overnight
GQ 670 leaves 20 h 35 after GQ 285 arrives on the timetable: more than half a day, so not a connection we count.