OZ 6523 then UA 5508 at San Francisco
Salt Lake City → San Francisco → Carlsbad
Timetable, San Francisco time
20:05OZ 6523 from Salt Lake City at the gate
18:45UA 5508 to Carlsbad leaves the gate
22 h 40 apart on the timetable, overnight
UA 5508 leaves 22 h 40 after OZ 6523 arrives on the timetable: more than half a day, so not a connection we count.