I live in Houston. My commute home (from up on North Loop West, to near Gessner/Westheimer) takes a minimum of 30 minutes even if I leave at 6-6:30pm. Total distance? ~11 miles.
Here's the data from my Automatic Pro GPS OBD2 dongle, on a "good day":
Trip started August 10, 2017 at 06:20PM
Trip ended August 10, 2017 at 06:58PM