AA 6094 then UA 1963 at Charlotte
Greensboro → Charlotte → Denver
Timetable, Charlotte time
13:08AA 6094 from Greensboro at the gate
08:36UA 1963 to Denver leaves the gate
19 h 28 apart on the timetable, overnight
UA 1963 leaves 19 h 28 after AA 6094 arrives on the timetable: more than half a day, so not a connection we count.