UA 702 then DL 9970 at Atlanta
San Francisco → Atlanta → Los Angeles
Timetable, Atlanta time
18:11UA 702 from San Francisco at the gate
17:01DL 9970 to Los Angeles leaves the gate
22 h 50 apart on the timetable, overnight
DL 9970 leaves 22 h 50 after UA 702 arrives on the timetable: more than half a day, so not a connection we count.