AA 2224 then UA 1963 at Charlotte
Baltimore → Charlotte → Denver
Timetable, Charlotte time
08:49AA 2224 from Baltimore at the gate
08:36UA 1963 to Denver leaves the gate
23 h 47 apart on the timetable, overnight
UA 1963 leaves 23 h 47 after AA 2224 arrives on the timetable: more than half a day, so not a connection we count.