DL 2964 then DL 5138 at Detroit
Hartford → Detroit → Knoxville
Timetable, Detroit time
07:35DL 2964 from Hartford at the gate
19:55DL 5138 to Knoxville leaves the gate
12 h 20 apart on the timetable
DL 5138 leaves 12 h 20 after DL 2964 arrives on the timetable: more than half a day, so not a connection we count.