DL 1323 then DL 9970 at Atlanta
Miami → Atlanta → Los Angeles
Timetable, Atlanta time
19:22DL 1323 from Miami at the gate
17:01DL 9970 to Los Angeles leaves the gate
21 h 39 apart on the timetable, overnight
DL 9970 leaves 21 h 39 after DL 1323 arrives on the timetable: more than half a day, so not a connection we count.