CM 2457 then SQ 33 at San Francisco
Sacramento → San Francisco → Singapore
Timetable, San Francisco time
21:41CM 2457 from Sacramento at the gatealso AC 4533, UA 5961, VA 8183
20:15SQ 33 to Singapore leaves the gate
22 h 34 apart on the timetable, overnight
SQ 33 leaves 22 h 34 after CM 2457 arrives on the timetable: more than half a day, so not a connection we count.