AA 1610 then UA 4727 at Denver
Charlotte → Denver → Lincoln
Timetable, Denver time
10:27AA 1610 from Charlotte at the gate
09:55UA 4727 to Lincoln leaves the gate
23 h 28 apart on the timetable, overnight
UA 4727 leaves 23 h 28 after AA 1610 arrives on the timetable: more than half a day, so not a connection we count.