Sure. For each role, you can set how many hours a person works in a workday (e.g. California limits 8 hours before overtime), and how many consecutive days they may work (e.g. California limits to 6 consecutive workdays in a workweek before overtime - we technically go beyond this and limit to 6 consecutive days independent of the window). For a worker, you may set how many hours per workweek they may work (e.g. 30-40 hours).
We define a workday as midnight to midnight, and you control the workweek start day when you create the trial.
Other nice-to-have features include that we try to give consecutive days off (like a weekend) when possible and we allow you to control the minimum amount of time between shifts to prevent "clopens" (e.g. when a worker closes at midnight then gets assigned the opening shift at 7am).
If you have more detailed questions, I'm happy to answer them via email too (philip at staffjoy)