TK 4951 then QR 238 at Istanbul
Antalya → Istanbul → Doha
Timetable, Istanbul time
14:40TK 4951 from Antalya at the gate
12:00QR 238 to Doha leaves the gate
21 h 20 apart on the timetable, overnight
QR 238 leaves 21 h 20 after TK 4951 arrives on the timetable: more than half a day, so not a connection we count.