KE 23 then WN 3839 at San Francisco
Seoul → San Francisco → Burbank
Timetable, San Francisco time
09:35KE 23 from Seoul at the gatealso DL 7860
09:25WN 3839 to Burbank leaves the gate
23 h 50 apart on the timetable, overnight
WN 3839 leaves 23 h 50 after KE 23 arrives on the timetable: more than half a day, so not a connection we count.