DL 9964 then DL 1868 at Atlanta
Grand Rapids → Atlanta → Tallahassee
Timetable, Atlanta time
18:19DL 9964 from Grand Rapids at the gate
15:18DL 1868 to Tallahassee leaves the gate
20 h 59 apart on the timetable, overnight
DL 1868 leaves 20 h 59 after DL 9964 arrives on the timetable: more than half a day, so not a connection we count.