W. Va. Code § 18-5-45
(a) As used in this section:
(1) “Instructional day” means a day within the instructional term which meets the following criteria:
(A) Instruction is offered to students for at least the minimum number of minutes as follows:
(b) Findings. –
(c) The county board shall provide a school term for its schools that contains the following:
(2) Within the employment term, an instructional term for students of no less than one hundred eighty separate instructional days, which includes an inclement weather and emergencies plan designed to guarantee an instructional term for students of no less than one hundred eighty separate instructional days, subject to the following:
(A) A county board may increase the length of the instructional day as defined in this section by at least thirty minutes per day to ensure that it achieves at least an amount of instructional time equivalent to one hundred and eighty separate instructional days within its school calendar and:
(3) Within the employment term, noninstructional days shall total twenty and shall be comprised of the following:
(E) The remaining days to be designated by the county board for purposes to include, but not be limited to:
(e) If it is not possible to complete one hundred eighty separate instructional days with the current school calendar and the additional five days of instructional time gained by increasing the length of the instructional day as provided in subsection (c) of this section are insufficient to offset the loss of separate instructional days, the county board shall schedule instruction on any available noninstructional day, regardless of the purpose for which the day originally was scheduled, or an out-of-calendar day and the day will be used for instruction of students: Provided, That the provisions of this subsection do not apply to:
(h) The following applies to cocurricular activities: