SEPTEMBER 11 will be a holiday in the Autonomous Region in Muslim Mindanao (ARMM) and other parts of Mindanao for the celebration of Amun Jadid, the Islamic New Year. In a memo released yesterday by the National Commission on Muslim Filipinos, the areas covered outside ARMM are: the provinces of Lanao del Norte, Cotabato, Sultan Kudarat, Zamboanga del Norte, and Zamboanga del Sur; and the cities of Zamboanga, Iligan, and Cotabato. The declaration is based on Presidential Decree No. 1083, the Code of Muslim Personnel Laws of the Philippines, which recognizes Amun Jadid as a Muslim holiday. Muslim government officials and employees working outside the covered areas are also excused from reporting to their respective offices on that day.