WN 1772 then UA 581 at San Francisco
Denver → San Francisco → Cleveland
Timetable, San Francisco time
13:25WN 1772 from Denver at the gate
12:45UA 581 to Cleveland leaves the gate
23 h 20 apart on the timetable, overnight
UA 581 leaves 23 h 20 after WN 1772 arrives on the timetable: more than half a day, so not a connection we count.