AA 1610 then AA 2937 at Charlotte
Denver → Charlotte → St Louis
Timetable, Charlotte time
16:29AA 1610 from Denver at the gate
16:28AA 2937 to St Louis leaves the gate
23 h 59 apart on the timetable, overnight
AA 2937 leaves 23 h 59 after AA 1610 arrives on the timetable: more than half a day, so not a connection we count.