California Code, Government Code - GOV § 12609

Any action brought pursuant to Section 12607 to review, set aside, void or annul any decision in any zoning matter of an administrative body or of a legislative body, or concerning any of the proceedings, acts or determinations taken, done or made prior to such decision, or to determine the reasonableness, legality or validity of any such decision shall not be maintained unless such action is commenced within 180 days after the date of such decision.