UA 3236 then UA 2682 at Houston
Midland → Houston → Memphis
Timetable, Houston time
18:30UA 3236 from Midland at the gate
18:25UA 2682 to Memphis leaves the gate
23 h 55 apart on the timetable, overnight
UA 2682 leaves 23 h 55 after UA 3236 arrives on the timetable: more than half a day, so not a connection we count.