DL 519 then UA 4736 at Denver
Atlanta → Denver → Hobbs
Timetable, Denver time
18:31DL 519 from Atlanta at the gate
14:10UA 4736 to Hobbs leaves the gate
19 h 39 apart on the timetable, overnight
UA 4736 leaves 19 h 39 after DL 519 arrives on the timetable: more than half a day, so not a connection we count.