F9 1229 then UA 3906 at San Francisco
Denver → San Francisco → Newark
Timetable, San Francisco time
11:17F9 1229 from Denver at the gate
07:00UA 3906 to Newark leaves the gate
19 h 43 apart on the timetable, overnight
UA 3906 leaves 19 h 43 after F9 1229 arrives on the timetable: more than half a day, so not a connection we count.