DL 343 then DL 2511 at Atlanta
Washington National → Atlanta → Rochester
Timetable, Atlanta time
09:55DL 343 from Washington National at the gate
09:01DL 2511 to Rochester leaves the gate
23 h 06 apart on the timetable, overnight
DL 2511 leaves 23 h 06 after DL 343 arrives on the timetable: more than half a day, so not a connection we count.