Outside school hours means such periods as before and after school hours, holidays, summer vacations, weekends, and any other day or part of a day when school is not in session as determined by the local public school district in which the minor resides when employed. Summer school sessions, held in addition to the regularly scheduled school year, are considered to be outside of school hours.
School hours refers to the hours that the local public school district where the minor resides while employed is in session during the regularly scheduled school year.
Week means a fixed and regularly recurring period of 168 hours-seven consecutive 24-hour periods-that is identical to the workweek the employer establishes for the employee under § 778.105 of this title.
Week when school is in session refers to any week the local public school district where the minor resides while employed is in session and students are required to attend for at least one day or partial day.
29 C.F.R. §570.35