GQ 691 then A3 998 at Athens
Tirana → Athens → Istanbul
Timetable, Athens time
11:45GQ 691 from Tirana at the gate
00:40A3 998 to Istanbul leaves the gate
12 h 55 apart on the timetable, overnight
A3 998 leaves 12 h 55 after GQ 691 arrives on the timetable: more than half a day, so not a connection we count.