Based on the assumption that your speedometer is most likely off by up to 10% from what speed you're traveling, I would say the tolerance of time that it would take ranges between 3.2528571428571428571428571428571 and 3.9757142857142857142857142857143 hours. If your speedometer is able to display the exact speed you are traveling, however, it would take you 3.6142857142857142857142857142857 hours to travel that distance.
I'm an engineer, can you tell?
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.
33 minutes.
12 minutes
117.6 Hours
6 minutes