California is 770 miles long. Unless you specify where in California (and where in Arkansas), the answer could be off by more than 770 miles.
It depends how fast you drive.
A LONG TIME
Where in CA to where in CO? Otherwise, the question is "How long does it take to drive across NV and UT?" Try Google Maps.
Drive from Tarzana, ca to Sedona,az
About 15 minutes.
About a week
45 to 50 min
about an hour
7 hours
5 minutes
1 hour
A little over an hour.