UA 2276 then DL 3929 at LAX
Washington → Los Angeles → Reno
Timetable, Los Angeles time
20:45UA 2276 from Washington at the gate
20:08DL 3929 to Reno leaves the gate
23 h 23 apart on the timetable, overnight
DL 3929 leaves 23 h 23 after UA 2276 arrives on the timetable: more than half a day, so not a connection we count.