UA 3236 then UA 6036 at Houston
Midland → Houston → Mc Allen
Timetable, Houston time
18:30UA 3236 from Midland at the gate
16:30UA 6036 to Mc Allen leaves the gate
22 h apart on the timetable, overnight
UA 6036 leaves 22 h after UA 3236 arrives on the timetable: more than half a day, so not a connection we count.