DL 456 then DL 3030 at Atlanta
Boston → Atlanta → Gainesville
Timetable, Atlanta time
11:58DL 456 from Boston at the gate
11:38DL 3030 to Gainesville leaves the gate
23 h 40 apart on the timetable, overnight
DL 3030 leaves 23 h 40 after DL 456 arrives on the timetable: more than half a day, so not a connection we count.