UA 217 then UA 785 at San Francisco
Arcata → San Francisco → Washington
Timetable, San Francisco time
09:13UA 217 from Arcata at the gate
06:15UA 785 to Washington leaves the gatealso AZ 4408, NZ 9160
21 h 02 apart on the timetable, overnight
UA 785 leaves 21 h 02 after UA 217 arrives on the timetable: more than half a day, so not a connection we count.