WN 642 then UA 336 at San Francisco
Burbank → San Francisco → Washington
Timetable, San Francisco time
11:05WN 642 from Burbank at the gate
10:50UA 336 to Washington leaves the gatealso VA 8379, NZ 9167
23 h 45 apart on the timetable, overnight
UA 336 leaves 23 h 45 after WN 642 arrives on the timetable: more than half a day, so not a connection we count.