Section 37222 Of Article 3. Saturdays And Holidays From California Education Code >> Division 3. >> Title 2. >> Part 22. >> Chapter 2. >> Article 3.

. (a) On each day designated and set apart as a day having special significance, all public schools and educational institutions are encouraged to observe that day and to conduct suitable commemorative exercises.
  (b) It is the intent of the Legislature that the exercises encouraged by subdivision (a) be integrated into the regular school program, and be conducted by the school or institution within the amount of time otherwise budgeted for educational programs.