DL 514 then DL 1053 at Phoenix
Boston → Phoenix → Atlanta
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
12:57DL 1053 to Atlanta leaves the gate
15 h 04 apart on the timetable, overnight
DL 1053 leaves 15 h 04 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.