Evening and part-time openings around Little Rock after 16 years as a teaching assistant

I am looking for part-time work that fits around school hours and found a few evening shifts near Little Rock. I am in Little Rock, in case local advice matters. Shifts are four to six hours and the pay is weekly. How many hours do they guarantee?

I worked evenings at a hotel. The hours were steady and the team was friendly, but weekends were busy.