DL 905 then DL 1491 at Atlanta
Salt Lake City → Atlanta → Austin
Timetable, Atlanta time
23:00DL 905 from Salt Lake City at the gate
16:55DL 1491 to Austin leaves the gate
17 h 55 apart on the timetable, overnight
DL 1491 leaves 17 h 55 after DL 905 arrives on the timetable: more than half a day, so not a connection we count.