Driving Time Calculator
This works out how long a drive actually takes, not just the distance divided by the speed. Enter the road distance and the speed you hold while moving, then add a traffic allowance, how often you stop to rest and the range you get on a tank or a charge, and it returns the time behind the wheel, the stop time, the total journey and the local clock time you arrive. A second mode runs it backwards and gives the latest minute you can leave to make a deadline. Both ends take a UTC offset, so a drive that crosses a time zone lands on the right clock.