DL 1656 then DL 748 at Atlanta
Charlotte → Atlanta → Las Vegas
Timetable, Atlanta time
12:12DL 1656 from Charlotte at the gate
10:07DL 748 to Las Vegas leaves the gate
21 h 55 apart on the timetable, overnight
DL 748 leaves 21 h 55 after DL 1656 arrives on the timetable: more than half a day, so not a connection we count.