DL 1091 then UA 805 at San Francisco
Salt Lake City → San Francisco → Seoul
Timetable, San Francisco time
23:59DL 1091 from Salt Lake City at the gatealso VS 4542
23:45UA 805 to Seoul leaves the gatealso OZ 6621
23 h 46 apart on the timetable, overnight
UA 805 leaves 23 h 46 after DL 1091 arrives on the timetable: more than half a day, so not a connection we count.