AC 550 then UA 1370 at LAX
Vancouver → Los Angeles → Tampa
Timetable, Los Angeles time
11:40AC 550 from Vancouver at the gate
10:55UA 1370 to Tampa leaves the gate
23 h 15 apart on the timetable, overnight
UA 1370 leaves 23 h 15 after AC 550 arrives on the timetable: more than half a day, so not a connection we count.