DL 2599 then DL 834 at Atlanta
Madison → Atlanta → Las Vegas
Timetable, Atlanta time
22:59DL 2599 from Madison at the gate
21:52DL 834 to Las Vegas leaves the gate
22 h 53 apart on the timetable, overnight
DL 834 leaves 22 h 53 after DL 2599 arrives on the timetable: more than half a day, so not a connection we count.