EW 2684 then A3 998 at Athens
Stuttgart → Athens → Istanbul
Timetable, Athens time
11:00EW 2684 from Stuttgart at the gate
00:40A3 998 to Istanbul leaves the gate
13 h 40 apart on the timetable, overnight
A3 998 leaves 13 h 40 after EW 2684 arrives on the timetable: more than half a day, so not a connection we count.