DL 3054 then AA 4576 at Atlanta
Savannah → Atlanta → Washington National
Timetable, Atlanta time
13:50DL 3054 from Savannah at the gate
13:39AA 4576 to Washington National leaves the gate
23 h 49 apart on the timetable, overnight
AA 4576 leaves 23 h 49 after DL 3054 arrives on the timetable: more than half a day, so not a connection we count.