October 31

As you are well aware, not only should Baha'is refrain from work on the nine Holy days, but the shops and establishments owned by Baha'is should also be closed on these Days. If government regulations do not require the station to be on the air on a mandatory daily basis, Radio Baha'i should not engage in regular broadcasts on the nine Holy Days. However, to aid the Baha’i Community in its observance of any one of these Days, the [radio] station may offer at a particular time a special program suited to such observance. Those wishing to be involved in the production and airing of the program would be rendering a special service. 
(From a letter written on behalf of the Universal House of Justice to the National Spiritual Assembly of Chile, dated 06/07/86)