AA 1610 then UA 1836 at Denver
Charlotte → Denver → Milwaukee
Timetable, Denver time
10:27AA 1610 from Charlotte at the gate
10:10UA 1836 to Milwaukee leaves the gate
23 h 43 apart on the timetable, overnight
UA 1836 leaves 23 h 43 after AA 1610 arrives on the timetable: more than half a day, so not a connection we count.