AA 1762 then UA 720 at Denver
Phoenix Sky Harbor → Denver → Calgary
Timetable, Denver time
19:22AA 1762 from Phoenix Sky Harbor at the gate
19:11UA 720 to Calgary leaves the gate
23 h 49 apart on the timetable, overnight
UA 720 leaves 23 h 49 after AA 1762 arrives on the timetable: more than half a day, so not a connection we count.