F9 1229 then UA 3900 at San Francisco
Denver → San Francisco → Hong Kong
Timetable, San Francisco time
11:17F9 1229 from Denver at the gate
07:00UA 3900 to Hong Kong leaves the gate
19 h 43 apart on the timetable, overnight
UA 3900 leaves 19 h 43 after F9 1229 arrives on the timetable: more than half a day, so not a connection we count.