Ala. Code § 16-8-30

The county board of education, in order to expedite the payment of teachers’ salaries and to make possible efficient supervision, shall fix a uniform date each year for the opening of all schools in the county under its jurisdiction, and all schools as far as in the opinion of the county board of education may be practicable shall open on said date. If for any reason the board shall permit any schools to open at later date, the reports and records of such schools shall be made so as to conform to the scholastic months, counting from the uniform date hereinabove mentioned.