September 11 is not a national holiday in the Philippines. For the majority of the country, it is a regular working and school day. However, it is observed as a special non-working holiday in a specific province for a distinct reason.
The observance of September 11 as a holiday is limited exclusively to the province of Ilocos Norte. This is mandated by Republic Act No. 11160, which declares the date as "President Ferdinand Edralin Marcos Day." The law designates it as a special non-working holiday within the province to commemorate the birth anniversary of the late president, who was born there. This local holiday is legislated and applies only within the geographical boundaries of Ilocos Norte.
Therefore, for all other regions and provinces in the Philippines, September 11 has no holiday status. Businesses, government offices, and schools outside of Ilocos Norte operate on their standard schedules. Employees working on this date in areas other than Ilocos Norte are subject to regular pay rates, as national holiday pay rules do not apply.
