DL 2643 then DL 2147 at Atlanta
Montréal → Atlanta → Providence
Timetable, Atlanta time
10:00DL 2643 from Montréal at the gate
09:55DL 2147 to Providence leaves the gate
23 h 55 apart on the timetable, overnight
DL 2147 leaves 23 h 55 after DL 2643 arrives on the timetable: more than half a day, so not a connection we count.