Which of the following spiritual observances is classified as a non-regular holiday?

Black Saturday is classified as a non-regular holiday as it does not have the same nationwide recognition or observance compared to the other options listed. In many countries, particularly in the context of Filipino holidays, non-regular holidays are typically more localized or specific to certain groups, while regular holidays are those that have widespread acknowledgement and consistent observance across the nation.

In contrast, the other spiritual observances mentioned—Eidul Fitr, Good Friday, and Maundy Thursday—are recognized as regular holidays that are observed nationwide or have significant cultural and religious importance that warrants formal recognition by the government. This classification often involves a legal framework, whereby regular holidays generally provide workers with specific entitlements regarding pay and rest.

Understanding the difference between these classifications is essential for human resources professionals, as it informs policies, payroll considerations, and compliance with labor laws related to religious observances.