DL 854 then DL 1930 at Atlanta
Springfield → Atlanta → Memphis
Timetable, Atlanta time
18:51DL 854 from Springfield at the gate
16:43DL 1930 to Memphis leaves the gate
21 h 52 apart on the timetable, overnight
DL 1930 leaves 21 h 52 after DL 854 arrives on the timetable: more than half a day, so not a connection we count.