DL 1091 then DL 335 at San Francisco
Salt Lake City → San Francisco → Detroit
Timetable, San Francisco time
23:59DL 1091 from Salt Lake City at the gatealso VS 4542
22:40DL 335 to Detroit leaves the gatealso WS 8016
22 h 41 apart on the timetable, overnight
DL 335 leaves 22 h 41 after DL 1091 arrives on the timetable: more than half a day, so not a connection we count.