In average it'll take 15 hours.
The drive from Salt Lake City, Utah, to Lake Tahoe, California, is 8 hours long. Most of the trip involves driving through the state of Nevada.
about 3 hrs
8 hours
4 hours
24 hours
8 hours
4 hours
4 hours
170 miles, 3 hours
maps.google.com
7 to 7 and 1/2 hours
7 and 1/2 hours