F9 4409 then DL 2940 at Atlanta
Washington → Atlanta → Detroit
Timetable, Atlanta time
23:13F9 4409 from Washington at the gate
22:59DL 2940 to Detroit leaves the gate
23 h 46 apart on the timetable, overnight
DL 2940 leaves 23 h 46 after F9 4409 arrives on the timetable: more than half a day, so not a connection we count.