January 2025 Holiday Calendar Philippines Sample Pdf. The national holidays for the observance of islamic events will be determined based on the islamic calendar, the lunar calendar, or islamic astronomical calculations. Submission of attachments to the 1702 (itr), together with 1709 (rpt form), if.

List of 2025 official holidays. The national holidays for the observance of islamic events will be determined based on the islamic calendar, the lunar calendar, or islamic astronomical calculations.