If you are going 40 mph, the actual driving time (not including speed changes, stops or delays) would be: 2 hours 30 minutes.
1.5 hours
it depends how fast you are going
12 hours.
50 min
7.73 hours
637 miles. Did you mean how long does it take to travel 637 miles? That would depend on how fast you are going. That would depend on what your speed is, your miles per hour.
2.8 hours
About 9 seconds.
6 minutes
30 minutes.
33 minutes.
12 minutes