DL 850 then DL 545 at Atlanta
Washington National → Atlanta → San Francisco
Timetable, Atlanta time
20:29DL 850 from Washington National at the gate
20:19DL 545 to San Francisco leaves the gate
23 h 50 apart on the timetable, overnight
DL 545 leaves 23 h 50 after DL 850 arrives on the timetable: more than half a day, so not a connection we count.