DL 716 then UA 3928 at Denver
New York LaGuardia → Denver → Toronto
Timetable, Denver time
17:35DL 716 from New York LaGuardia at the gate
17:30UA 3928 to Toronto leaves the gate
23 h 55 apart on the timetable, overnight
UA 3928 leaves 23 h 55 after DL 716 arrives on the timetable: more than half a day, so not a connection we count.