DL 2990 then DL 9970 at Atlanta
Jacksonville → Atlanta → Los Angeles
Timetable, Atlanta time
17:25DL 2990 from Jacksonville at the gate
17:01DL 9970 to Los Angeles leaves the gate
23 h 36 apart on the timetable, overnight
DL 9970 leaves 23 h 36 after DL 2990 arrives on the timetable: more than half a day, so not a connection we count.