F9 3228 then Y4 1958 at Houston
Denver → Houston → Queretaro
Timetable, Houston time
21:45F9 3228 from Denver at the gate
21:32Y4 1958 to Queretaro leaves the gate
23 h 47 apart on the timetable, overnight
Y4 1958 leaves 23 h 47 after F9 3228 arrives on the timetable: more than half a day, so not a connection we count.