DL 514 then WN 585 at Phoenix
Boston → Phoenix → Denver
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
16:10WN 585 to Denver leaves the gate
18 h 17 apart on the timetable, overnight
WN 585 leaves 18 h 17 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.