DL 777 then DL 9970 at Atlanta
Las Vegas → Atlanta → Los Angeles
Timetable, Atlanta time
17:49DL 777 from Las Vegas at the gate
17:01DL 9970 to Los Angeles leaves the gate
23 h 12 apart on the timetable, overnight
DL 9970 leaves 23 h 12 after DL 777 arrives on the timetable: more than half a day, so not a connection we count.