UA 4700 then UA 3754 at Houston
Nashville → Houston → Waco
Timetable, Houston time
13:17UA 4700 from Nashville at the gate
11:30UA 3754 to Waco leaves the gate
22 h 13 apart on the timetable, overnight
UA 3754 leaves 22 h 13 after UA 4700 arrives on the timetable: more than half a day, so not a connection we count.