KE 35 then DL 2681 at Atlanta
Seoul → Atlanta → Madison
Timetable, Atlanta time
10:05KE 35 from Seoul at the gate
09:30DL 2681 to Madison leaves the gate
23 h 25 apart on the timetable, overnight
DL 2681 leaves 23 h 25 after KE 35 arrives on the timetable: more than half a day, so not a connection we count.