TK 2323 then GQ 671 at Istanbul
Izmir → Istanbul → Athens
Timetable, Istanbul time
15:20TK 2323 from Izmir at the gate
10:30GQ 671 to Athens leaves the gate
19 h 10 apart on the timetable, overnight
GQ 671 leaves 19 h 10 after TK 2323 arrives on the timetable: more than half a day, so not a connection we count.