A3 225 then GQ 670 at Athens
Kos → Athens → Istanbul
Timetable, Athens time
18:20A3 225 from Kos at the gate
07:00GQ 670 to Istanbul leaves the gate
12 h 40 apart on the timetable, overnight
GQ 670 leaves 12 h 40 after A3 225 arrives on the timetable: more than half a day, so not a connection we count.