Culture

What is Autumn Equinox Day? Understanding its Meaning and Origins

September 22, 2026

Autumn Equinox Day in Japan is a holiday where day and night are nearly equal in length, providing an opportunity to connect with nature. The date varies each year but is usually set around September 23.

■Meaning and Origins of Autumn Equinox Day Autumn Equinox Day marks the time when day and night are nearly equal in length, holding special astronomical significance. In Japan, this day embodies traditions of respecting nature and honoring ancestors.

■When and Where is it Celebrated The date of Autumn Equinox Day changes each year but is generally around September 23. It is universally recognized as a public holiday in Japan, when many people visit ancestral graves with family.

■Impact on Daily Life Many businesses and schools are closed, and public transport may become crowded. Roads leading to tourist sites and cemeteries can be especially busy, so plan extra time for your journey.

■How Should Foreigners Respond To participate in events for Autumn Equinox Day, check local event information. Because activities vary by region, advance research can be helpful. If attending grave visits, ensure appropriate attire and behavior.

■Etiquette and Cautions To honor Japanese traditions, especially in religious settings, maintain decorum and avoid causing disruption. This may include limiting photography in certain locations.