DL 211 then DL 2563 at Atlanta
Cape Town → Atlanta → West Palm Beach
Timetable, Atlanta time
06:00DL 211 from Cape Town at the gate
21:10DL 2563 to West Palm Beach leaves the gate
15 h 10 apart on the timetable
DL 2563 leaves 15 h 10 after DL 211 arrives on the timetable: more than half a day, so not a connection we count.