UA 5892 then AC 756 at San Francisco
Monterey → San Francisco → Montréal
Timetable, San Francisco time
11:01UA 5892 from Monterey at the gate
08:25AC 756 to Montréal leaves the gate
21 h 24 apart on the timetable, overnight
AC 756 leaves 21 h 24 after UA 5892 arrives on the timetable: more than half a day, so not a connection we count.