Does Japan have Diwali?
Not observed here
There is no Diwali in Japan. The national holidays number sixteen, listed in one article of the Act on National Holidays; the only two that touch on belief are the spring and autumn equinox days, and their statutory meanings are written as praising nature and remembering ancestors, not as any religion's festival. Put another way, Japan's holiday table keeps no slot for an imported religious festival — not just Diwali is missing; none of them is there.
What is this topic?
Diwali is a five-day season, not a single day. This page separates the main day (Lakshmi–Ganesha Puja) from the opening Dhanteras and the closing Bhai Dooj, and compares two very different statuses: a national holiday with a five-day ritual sequence in India, and a public-school closure in New York City that only became law in 2023.
Sources and dates
Dates follow local time zones, calendars, and official notices. Check the source when a date is estimated or locally variable.