UA 822 then B6 316 at San Francisco
Mexico City → San Francisco → New York JFK
Timetable, San Francisco time
08:44UA 822 from Mexico City at the gatealso AC 5403, NH 7369, NZ 9822
08:05B6 316 to New York JFK leaves the gatealso LO 5774, EY 8328, AT 9559
23 h 21 apart on the timetable, overnight
B6 316 leaves 23 h 21 after UA 822 arrives on the timetable: more than half a day, so not a connection we count.