Depends on the sentence.
It always depends
That depends on the jurisdiction and, to a degree, the judge.
you stay in jail forever
a few weeks
they can stay up to 12 months
The ethnicity of a person has nothing to do with the law. Justice is blind and the fact that s person is white has so bearing on a crime.
15 years
8 hrs
30 days
John McCain, Republican Presidential Candidate in 2008, did not go to jail.
24 hours
20 yaers