UA 571 then UA 785 at San Francisco
Atlanta → San Francisco → Washington
Timetable, San Francisco time
09:29UA 571 from Atlanta at the gatealso CA 7243, VA 8403, NZ 9005
06:15UA 785 to Washington leaves the gatealso AZ 4408, NZ 9160
20 h 46 apart on the timetable, overnight
UA 785 leaves 20 h 46 after UA 571 arrives on the timetable: more than half a day, so not a connection we count.