CI 5346 then UA 3907 at San Francisco
Taipei → San Francisco → Denver
Timetable, San Francisco time
10:37CI 5346 from Taipei at the gate
07:00UA 3907 to Denver leaves the gate
20 h 23 apart on the timetable, overnight
UA 3907 leaves 20 h 23 after CI 5346 arrives on the timetable: more than half a day, so not a connection we count.