Tucson to Seattle takes about 24 hours driving, though of course that depends on stops and traffic.
How many hours to drive from Seattle WA to Las Vegas NV?
12 hours
Call it a 12 hour drive.
20 hours
20 hours
It will take you about 24 hours to drive the 1,658 miles.
About 13 hours.
2 hours
It will take about 1 day 13 hours to drive the 2,260 miles.
33 hours.
13 to 13 and 1/2 hours
From my house, 42 hours. From your house, probably different.