TK 2143 then TK 1555 at Istanbul
Ankara → Istanbul → Hannover
Timetable, Istanbul time
20:25TK 2143 from Ankara at the gate
15:45TK 1555 to Hannover leaves the gate
19 h 20 apart on the timetable, overnight
TK 1555 leaves 19 h 20 after TK 2143 arrives on the timetable: more than half a day, so not a connection we count.