DL 1223 then DL 2739 at Atlanta
Cincinnati → Atlanta → Hartford
Timetable, Atlanta time
16:33DL 1223 from Cincinnati at the gate
13:56DL 2739 to Hartford leaves the gate
21 h 23 apart on the timetable, overnight
DL 2739 leaves 21 h 23 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.