TK 6951 then TK 2454 at Istanbul
Kars → Istanbul → Tarsus
Timetable, Istanbul time
17:45TK 6951 from Kars at the gate
09:25TK 2454 to Tarsus leaves the gate
15 h 40 apart on the timetable, overnight
TK 2454 leaves 15 h 40 after TK 6951 arrives on the timetable: more than half a day, so not a connection we count.