UA 1305 then BR 665 at Atlanta
Denver → Atlanta → Anchorage
Timetable, Atlanta time
22:50UA 1305 from Denver at the gate
18:45BR 665 to Anchorage leaves the gate
19 h 55 apart on the timetable, overnight
BR 665 leaves 19 h 55 after UA 1305 arrives on the timetable: more than half a day, so not a connection we count.