A3 761 then GQ 670 at Athens
Stockholm → Athens → Istanbul
Timetable, Athens time
17:10A3 761 from Stockholm at the gate
07:00GQ 670 to Istanbul leaves the gate
13 h 50 apart on the timetable, overnight
GQ 670 leaves 13 h 50 after A3 761 arrives on the timetable: more than half a day, so not a connection we count.