DL 912 then DL 763 at Atlanta
Salt Lake City → Atlanta → Los Angeles
Timetable, Atlanta time
05:15DL 912 from Salt Lake City at the gate
17:59DL 763 to Los Angeles leaves the gate
12 h 44 apart on the timetable
DL 763 leaves 12 h 44 after DL 912 arrives on the timetable: more than half a day, so not a connection we count.