KL 623 then DL 2718 at Atlanta
Amsterdam → Atlanta → Gulfport
Timetable, Atlanta time
13:35KL 623 from Amsterdam at the gate
12:43DL 2718 to Gulfport leaves the gate
23 h 08 apart on the timetable, overnight
DL 2718 leaves 23 h 08 after KL 623 arrives on the timetable: more than half a day, so not a connection we count.