Evening and part-time openings around Milwaukee - first time posting

I am looking for part-time work that fits around school hours and found a few evening shifts near Milwaukee. I do not usually post, so bear with me. Shifts are four to six hours and the pay is weekly. How many hours do they guarantee?

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.