UA 3236 then UA 2228 at Houston
Midland → Houston → Minneapolis
Timetable, Houston time
18:30UA 3236 from Midland at the gate
14:40UA 2228 to Minneapolis leaves the gate
20 h 10 apart on the timetable, overnight
UA 2228 leaves 20 h 10 after UA 3236 arrives on the timetable: more than half a day, so not a connection we count.