WN 3296 then UA 1 at San Francisco
San Diego → San Francisco → Singapore
Timetable, San Francisco time
22:45WN 3296 from San Diego at the gate
22:40UA 1 to Singapore leaves the gate
23 h 55 apart on the timetable, overnight
UA 1 leaves 23 h 55 after WN 3296 arrives on the timetable: more than half a day, so not a connection we count.