Wis. Stat. § 985.11: Fees and work on Sunday.

(1) In any action to recover compensation for publication of legal notices, it shall be no defense that such publication was dated, printed or issued on the first day of the week.

(2) In any action to recover compensation for labor performed on any newspaper, dated, published or issued on the first day of the week, it shall be no defense that such labor was performed on the first day of the week.