F9 1229 then UA 785 at San Francisco
Denver → San Francisco → Washington
Timetable, San Francisco time
11:17F9 1229 from Denver at the gate
06:15UA 785 to Washington leaves the gatealso AZ 4408, NZ 9160
18 h 58 apart on the timetable, overnight
UA 785 leaves 18 h 58 after F9 1229 arrives on the timetable: more than half a day, so not a connection we count.