That depends on a few factors. The first, and probably most important, how fast are you going? Remember that distance = rate * time and therefore, distance/time = rate.
Then, if you stop a few times, time will obviously increase. Assuming that you travel at an average of 60 miles an hour, it will take 10 hours. However, this is obviously subject to change since the rate may vary.
10.5
going 60 miles an hour
It would take 12 minutes to drive 20 miles at 100 mph.
601/60=10.0166 It would take 10.0166 hours to drive the 601 miles.
It would take about 46 minutes to drive 50 miles.
2000 miles
it depends on your speed
About 5.5 hours.
Depends on your speed.
6 hours
33mins
Depends on the speed