DL 2327 then UA 571 at Atlanta
Washington → Atlanta → San Francisco
Timetable, Atlanta time
07:51DL 2327 from Washington at the gate
07:00UA 571 to San Francisco leaves the gate
23 h 09 apart on the timetable, overnight
UA 571 leaves 23 h 09 after DL 2327 arrives on the timetable: more than half a day, so not a connection we count.