B6 119 then DL 2718 at Atlanta
New York JFK → Atlanta → Gulfport
Timetable, Atlanta time
13:16B6 119 from New York JFK at the gate
12:43DL 2718 to Gulfport leaves the gate
23 h 27 apart on the timetable, overnight
DL 2718 leaves 23 h 27 after B6 119 arrives on the timetable: more than half a day, so not a connection we count.