DL 1625 then DL 588 at Atlanta
Memphis → Atlanta → Mexico City
Timetable, Atlanta time
10:30DL 1625 from Memphis at the gate
10:06DL 588 to Mexico City leaves the gate
23 h 36 apart on the timetable, overnight
DL 588 leaves 23 h 36 after DL 1625 arrives on the timetable: more than half a day, so not a connection we count.