Tyson, 41, was arrested last Dec. 29 in Scottsdale, Ariz., during a drunken-driving enforcement operation. Officers said he was driving erratically. He also allegedly told police he was using cocaine daily.
The former heavyweight champion pleaded guilty in September to a felony charge of cocaine possession and a misdemeanor driving under the influence charge.
Tyson was sentenced by Maricopa County Superior Court Judge Helene Abrams. He is to serve the day in jail Tuesday, the East Valley Tribune in Mesa, Ariz., reported. Tyson was also ordered not to drink alcohol for three years.
The fighter could have been sentenced to four years, three months in prison. Prosecutors had sought a term of one year.