UA 3236 then UA 2830 at Houston
Midland → Houston → Dallas-Fort Worth
Timetable, Houston time
18:30UA 3236 from Midland at the gate
16:20UA 2830 to Dallas-Fort Worth leaves the gate
21 h 50 apart on the timetable, overnight
UA 2830 leaves 21 h 50 after UA 3236 arrives on the timetable: more than half a day, so not a connection we count.