November 15

The general principle ... is that a request for excuse from School sessions on Bahá'í Holy Days is desirable. This applies to all Bahá'í children regardless of their age. Children of Bahá'í parents, under the age of 15, are considered Bahá'ís.

What a Bahá'í parent or your Assembly should do is apply to the School Board to grant to their children permission to remain away from School on Bahá'í Holy Days, and then abide by whatever decision the School Board may make, and not try in any way to force the matter. 

- Shoghi Effendi  (From a letter dated 19 August 1952 written on behalf of Shoghi Effendi to an individual believer; The Compilation of Compilations, vol. I, Baha’i Education)