UA 335 then DL 640 at San Francisco
Eugene → San Francisco → Atlanta
Timetable, San Francisco time
08:40UA 335 from Eugene at the gatealso NZ 9173
08:00DL 640 to Atlanta leaves the gatealso KL 7664
23 h 20 apart on the timetable, overnight
DL 640 leaves 23 h 20 after UA 335 arrives on the timetable: more than half a day, so not a connection we count.