DL 905 then DL 1102 at Atlanta
Salt Lake City → Atlanta → St Louis
Timetable, Atlanta time
23:35DL 905 from Salt Lake City at the gate
12:40DL 1102 to St Louis leaves the gate
13 h 05 apart on the timetable, overnight
DL 1102 leaves 13 h 05 after DL 905 arrives on the timetable: more than half a day, so not a connection we count.