DL 1223 then KL 272 at Atlanta
Cincinnati → Atlanta → Amsterdam
Timetable, Atlanta time
16:33DL 1223 from Cincinnati at the gate
15:53KL 272 to Amsterdam leaves the gate
23 h 20 apart on the timetable, overnight
KL 272 leaves 23 h 20 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.