F9 3409 then DL 1720 at Atlanta
Detroit → Atlanta → Tampa
Timetable, Atlanta time
17:16F9 3409 from Detroit at the gate
13:45DL 1720 to Tampa leaves the gate
20 h 29 apart on the timetable, overnight
DL 1720 leaves 20 h 29 after F9 3409 arrives on the timetable: more than half a day, so not a connection we count.