There are several types of business organizations one can form when doing business in Mexico, including various forms of corporations and partnerships. Public holidays in Mexico include New Year's Day, Constitution Day, Benito Juarez Day, Labor Day, Independence Day, and Christmas. Work days and hours are regulated, with employees receiving a bonus for working Sundays and requirements around shift lengths and breaks. Vacation time increases with seniority up to a maximum of 22 days for those with over 25 years of experience.