DL 937 then DL 2029 at Atlanta
Tucson → Atlanta → Mobile
Timetable, Atlanta time
20:31DL 937 from Tucson at the gate
20:30DL 2029 to Mobile leaves the gate
23 h 59 apart on the timetable, overnight
DL 2029 leaves 23 h 59 after DL 937 arrives on the timetable: more than half a day, so not a connection we count.