DL 926 then DL 1266 at Atlanta
Washington National → Atlanta → West Palm Beach
Timetable, Atlanta time
12:09DL 926 from Washington National at the gate
07:00DL 1266 to West Palm Beach leaves the gate
18 h 51 apart on the timetable, overnight
DL 1266 leaves 18 h 51 after DL 926 arrives on the timetable: more than half a day, so not a connection we count.