UA 506 then AV 2352 at San Francisco
Raleigh-Durham → San Francisco → Burbank
Timetable, San Francisco time
11:19UA 506 from Raleigh-Durham at the gate
07:15AV 2352 to Burbank leaves the gate
19 h 56 apart on the timetable, overnight
AV 2352 leaves 19 h 56 after UA 506 arrives on the timetable: more than half a day, so not a connection we count.