DL 471 then DL 1579 at Atlanta
Los Angeles → Atlanta → Miami
Timetable, Atlanta time
00:34DL 471 from Los Angeles at the gate
12:42DL 1579 to Miami leaves the gate
12 h 08 apart on the timetable
DL 1579 leaves 12 h 08 after DL 471 arrives on the timetable: more than half a day, so not a connection we count.