NH 8 then UA 785 at San Francisco
Tokyo Narita → San Francisco → Washington
Timetable, San Francisco time
09:20NH 8 from Tokyo Narita at the gatealso TG 6094, UA 7950
06:15UA 785 to Washington leaves the gatealso AZ 4408, NZ 9160
20 h 55 apart on the timetable, overnight
UA 785 leaves 20 h 55 after NH 8 arrives on the timetable: more than half a day, so not a connection we count.