Oh, dude, like, it depends on how fast you're going. If you're cruising at, say, 60 miles per hour, it should take you about 42 minutes. But if you're stuck in traffic or driving Miss Daisy, who knows, it could take hours. Just remember, it's not a race... unless you're racing, then, like, speed it up, man!
42 minutes
.42 hours
At 60 MPH average, about 42 hours.
42 minutes
42/10 = 21/5 = 4 and 1/5 hours
7 hours and 42 minutes.
At 65 mph, driving 42 miles will take 38 minutes 46 seconds.
7 hours 42 minutes.
3 hours 42 minutes.
5 hours and 42 minutes
14 hours 42 minutes @65 mph
32 hours and 42 minutes.