DL 912 then DL 2563 at Atlanta
Salt Lake City → Atlanta → West Palm Beach
Timetable, Atlanta time
05:15DL 912 from Salt Lake City at the gate
20:45DL 2563 to West Palm Beach leaves the gate
15 h 30 apart on the timetable
DL 2563 leaves 15 h 30 after DL 912 arrives on the timetable: more than half a day, so not a connection we count.