About Yorozu Goyomi

Yorozu Goyomi (よろずごよみ, roughly "an almanac of everything") is an encyclopedia of Japanese eto (the stems and branches), yin-yang and the five elements, with free fortune tools. This is the international edition of the site; more pages are on the way.

Calendar calculations follow the solar terms. The timing of Risshun and the other solar terms is computed astronomically and checked against data from the National Astronomical Observatory of Japan.

The illustrations on this site were created with the help of AI image generation.