TK 2123 then T5 902 at Istanbul
Ankara → Istanbul → Ashgabat
Timetable, Istanbul time
10:15TK 2123 from Ankara at the gate
09:45T5 902 to Ashgabat leaves the gate
23 h 30 apart on the timetable, overnight
T5 902 leaves 23 h 30 after TK 2123 arrives on the timetable: more than half a day, so not a connection we count.