UA 5588 then DL 2272 at LAX
Fresno → Los Angeles → San Francisco
Timetable, Los Angeles time
09:26UA 5588 from Fresno at the gate
09:25DL 2272 to San Francisco leaves the gate
23 h 59 apart on the timetable, overnight
DL 2272 leaves 23 h 59 after UA 5588 arrives on the timetable: more than half a day, so not a connection we count.