California Code, Military and Veterans Code - MVC § 394.5

Any employee of any corporation, company, or firm, or other person, who is a member of the reserve corps of the armed forces of the United States or of the National Guard or the Naval Militia shall be entitled to a temporary leave of absence without pay while engaged in military duty ordered for purposes of military training, drills, encampment, naval cruises, special exercises or like activity as such member, providing that the period of ordered duty does not exceed 17 calendar days annually including time involved in going to and returning from such duty.