DL 599 then DL 8844 at Atlanta
Mexico City → Atlanta → Detroit
Timetable, Atlanta time
20:56DL 599 from Mexico City at the gate
09:28DL 8844 to Detroit leaves the gate
12 h 32 apart on the timetable, overnight
DL 8844 leaves 12 h 32 after DL 599 arrives on the timetable: more than half a day, so not a connection we count.