DL 74 then TK 1956 at Schiphol
Atlanta → Amsterdam → Istanbul
Timetable, Amsterdam time
10:40DL 74 from Atlanta at the gate
23:10TK 1956 to Istanbul leaves the gate
12 h 30 apart on the timetable
TK 1956 leaves 12 h 30 after DL 74 arrives on the timetable: more than half a day, so not a connection we count.