UA 5935 then DL 957 at Denver
Salt Lake City → Denver → Atlanta
Timetable, Denver time
20:03UA 5935 from Salt Lake City at the gate
14:24DL 957 to Atlanta leaves the gate
18 h 21 apart on the timetable, overnight
DL 957 leaves 18 h 21 after UA 5935 arrives on the timetable: more than half a day, so not a connection we count.