I work in third shift retail stocking shelves and i just put in a 12 hour day (10pm - 10am). Normally in this situation they will cut hours off of other days so I dont go over 40 hours. My grandfather who worked in human resources just informed me that every hour I worked over 8 I should recieve overtime pay for. Is this true? I do not think that my employer has been doing that because we have a lot of days that we work 9-10 hours because we work till we finish.

If that is the case and i am entitled to overtime pay how do i go about brining it up to my bosses so i dont get fired?

No, your grandfather is wrong. The only states where overtime is required to be calculated as over 8 in a day, are California, Nevada and Alaska. (Colorado requires daily overtime for over 12 hours in a day.) All the rest of the US, including Wisconsin, only requires overtime for over 40 hours in a week.

Your employer is not required to allow you to work over 40 hours. It is legal for them to send you home early one day if you worked extra hours on another.

just curious if you by chance know what this means? I saw this right before your reply but i was just wondering.

The Wisconsin Prevailing Wage Rate Laws:
Wisconsin has three (3) separate prevailing wage rate laws. Each law covers a different type of project. Section 103.49 covers all types of projects bid by the state, except highway and related projects; Section 103.50 covers all highway and related projects bid by the state; and Section 66.0903 covers all projects bid or negotiated by a local governmental unit in the state. All workers that perform manual labor on the site of projects covered by these laws must receive the “prevailing wage rate” for the work they perform.

As of April 30, 1996, each of these laws require that all workers must receive at least time and one-half for all work performed in excess of 10 hours a day on Monday through Friday and for all work performed on Saturday, Sunday and six (6) legal holidays (News Years Day, Memorial Day, July 4th, Labor Day, Thanksgiving Day and Christmas Day).

Workers covered by these laws must also receive at least time and one-half for all work performed in excess of 40 hours in any calendar week on the site of a project covered by these laws.

As of January 1, 1986, daily overtime is no longer required on projects subject only to the federal Davis-Bacon Act. If a project is subject to both the state and federal laws, daily overtime must be paid.


from: http://www.dwd.state.wi.us/er/labor_standards_bureau/publication_erd_8298_pweb.htm

Prevailing wage laws do not apply here, from what you have said. They only apply in the circumstances described in the statute; not to restocking shelves.