Please note that when a national holiday in Japan falls on a Sunday, the following Monday is observed as a substitute holiday. Additionally, single days that fall between two national holidays are also designated as holidays. For example, May 6, 2025, is a substitute holiday because Greenery Day falls on a Sunday.

Please note that Islamic holidays such as Eid al-Fitr and Eid al-Adha are determined by lunar sightings, so the exact dates may vary. Additionally, a recent resolution allows for certain public holidays that fall on weekends to be moved to the beginning or end of the week, providing extended breaks. However, this adjustment does not apply to Eid al-Fitr and Eid al-Adha.

In 2025, the government has officially declared 19 general public holidays. These holidays encompass a range of national events, religious observances, and regional festivals.