U2 3237 then TK 1848 at Athens
Edinburgh → Athens → Istanbul
Timetable, Athens time
19:00U2 3237 from Edinburgh at the gate
13:05TK 1848 to Istanbul leaves the gate
18 h 05 apart on the timetable, overnight
TK 1848 leaves 18 h 05 after U2 3237 arrives on the timetable: more than half a day, so not a connection we count.