AA 5510 then DL 656 at Atlanta
Washington National → Atlanta → San Francisco
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
21:49DL 656 to San Francisco leaves the gate
22 h 26 apart on the timetable, overnight
DL 656 leaves 22 h 26 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.