12 Month/Year Round School Calendar: A district may also choose a 12 month/year-round school calendar option as described in Ark. Code Ann. § 6-10-108. This option, which is a “twelve-month year-round educational program,” means an educational program in which all students attend school no less than the number of days required by the Standards for Accreditation of Arkansas Public Schools and School Districts (178 days; 6 hours of instruction daily or average 30 hours per week) between July 1 and June 30 of each school year and in which no vacation, including summer, lasts more than seven (7) weeks.