The shortest time is 14 hours and 19 minutes.
Google Maps estimates the driving time as 14 hours and 21 minutes.
16 hours and 34 minutes
2 hrs 46 mins 139 miles
A long time
If you are asking about the Cornwall in England, then you can't drive from there to Los Angeles, because of the ocean.
A drive from Las Vegas to Los Angeles would take about 70 hours.
Google Maps estimates the driving time as 24 hours.
few days
50 hours
The overall distance is about 130 milesThe estimate time it will take is about 2 hours and 10 minutes
One side of North America to the other is about 73 hours.
Roughly 2 hours. Vail west on I-70 to the Rte 82 exit then another 50 miles or so straight into dwtwn Aspen