DL 706 then B6 120 at Atlanta
Denver → Atlanta → New York JFK
Timetable, Atlanta time
18:01DL 706 from Denver at the gate
14:20B6 120 to New York JFK leaves the gate
20 h 19 apart on the timetable, overnight
B6 120 leaves 20 h 19 after DL 706 arrives on the timetable: more than half a day, so not a connection we count.