UA 561 then UA 6001 at San Francisco
Kansas City → San Francisco → Monterrey
Timetable, San Francisco time
20:10UA 561 from Kansas City at the gatealso OZ 6318, NZ 9502
10:28UA 6001 to Monterrey leaves the gate
14 h 18 apart on the timetable, overnight
UA 6001 leaves 14 h 18 after UA 561 arrives on the timetable: more than half a day, so not a connection we count.