GQ 671 then GQ 2 at Athens
Istanbul → Athens → Kozani
Timetable, Athens time
10:55GQ 671 from Istanbul at the gate
10:15GQ 2 to Kozani leaves the gate
23 h 20 apart on the timetable, overnight
GQ 2 leaves 23 h 20 after GQ 671 arrives on the timetable: more than half a day, so not a connection we count.