DL 431 then DL 4955 at Atlanta
Denver → Atlanta → Montgomery
Timetable, Atlanta time
11:58DL 431 from Denver at the gate
11:45DL 4955 to Montgomery leaves the gate
23 h 47 apart on the timetable, overnight
DL 4955 leaves 23 h 47 after DL 431 arrives on the timetable: more than half a day, so not a connection we count.