DL 2176 then DL 507 at LAX
Denver → Los Angeles → Boston
Timetable, Los Angeles time
21:30DL 2176 from Denver at the gate
21:05DL 507 to Boston leaves the gate
23 h 35 apart on the timetable, overnight
DL 507 leaves 23 h 35 after DL 2176 arrives on the timetable: more than half a day, so not a connection we count.