UA 1853 then DL 2197 at LAX
Cleveland → Los Angeles → San Francisco
Timetable, Los Angeles time
20:27UA 1853 from Cleveland at the gate
18:02DL 2197 to San Francisco leaves the gate
21 h 35 apart on the timetable, overnight
DL 2197 leaves 21 h 35 after UA 1853 arrives on the timetable: more than half a day, so not a connection we count.