UA 648 then CI 5345 at San Francisco
Newark → San Francisco → Taipei
Timetable, San Francisco time
09:30UA 648 from Newark at the gatealso TP 8490, VA 8516, NZ 9121
04:10CI 5345 to Taipei leaves the gate
18 h 40 apart on the timetable, overnight
CI 5345 leaves 18 h 40 after UA 648 arrives on the timetable: more than half a day, so not a connection we count.