DL 9961 then DL 27 at Atlanta
CWF → Atlanta → Seoul
Timetable, Atlanta time
11:41DL 9961 from CWF at the gate
23:50DL 27 to Seoul leaves the gate
12 h 09 apart on the timetable
DL 27 leaves 12 h 09 after DL 9961 arrives on the timetable: more than half a day, so not a connection we count.