DL 423 then DL 847 at Salt Lake City
Atlanta → Salt Lake City → Washington
Timetable, Salt Lake City time
15:55DL 423 from Atlanta at the gate
14:10DL 847 to Washington leaves the gate
22 h 15 apart on the timetable, overnight
DL 847 leaves 22 h 15 after DL 423 arrives on the timetable: more than half a day, so not a connection we count.