The Japanese calendar does not have four seasons. It has twenty-four, each about fifteen days long, with names like White Dew, Grain in Ear, and Insects Awaken. They came from China, were adjusted for Japan’s climate over centuries, and are still printed in ordinary diaries.
They are not folklore. They are a practical instrument for noticing that the year is moving, in steps small enough to see.
Why twenty-four
Four seasons are too coarse to notice. Summer is three months of the same word, and by the end of it the light has changed completely without anyone marking the day it did. Twenty-four seasons are about two weeks each, which is roughly how long it takes for one real thing outside to change: the first cold morning, the day the cicadas stop, the week the light comes in lower through the window.
The sekki, as they are called, give those changes a date and a name. And a named change is one you can act on.
The practice
Every fifteen days, when the season turns, change one thing in the home.
One. The scroll in the tokonoma, if there is one. The single object on the shelf. The tea. The cloth on the table. The flower, if there is a flower. Something small, chosen because it fits the fortnight that is starting.
That is the whole practice, and it is older than the word minimalism. It is what the tokonoma was for, and what the seasonal menus of a kaiseki meal are for, and why Japanese sweets change their shape every few weeks. The home is kept in step with the outside by one deliberate change at a time.
How to keep the dates
The twenty-four sekki fall on roughly the same days each year. The ones most people can feel are these:
Risshun, the start of spring, in early February. Keichitsu, when insects wake, in early March. Rikka, the start of summer, in early May. Shosho, the end of heat, in late August. Hakuro, white dew, in early September. Kanro, cold dew, in early October. Ritto, the start of winter, in early November. Toji, the winter solstice, in late December.
You do not need all twenty-four. Pick six or eight that you can actually feel where you live, write their dates on a calendar, and change one thing on each.
What people notice
The first thing is that two weeks is the right length. A month is too long; the change is forgotten. A week is too short; there is nothing to mark. Fifteen days is the interval at which the outside has done something worth answering.
The second is that the choosing becomes easier. The first few changes feel like decisions. After half a year, the eye has started noticing things during the fortnight that would suit the next one, and the change is already decided by the time the date arrives.
The third is that the home stops looking the same. Not because more was bought. Because one thing was moved, twenty-four times a year, in step with something real.
Where this fits
The tokonoma is the one place in a Japanese room where something is shown, and the discipline of changing it. This is the calendar that discipline runs on. Together they are most of what the word seasonal means in a Japanese home, and neither requires owning more than one thing worth changing.
A free two-week sheet. The Doorway Test gives you three questions to ask before something crosses the threshold, and fourteen lines to record what you decided. Two weeks, which is one season. You get it by email, free. → Get the free sheet
If you want the whole thirty days on paper: the Danshari Workbook takes the three characters in order, ten days each, one page a day. A4, A5, and Letter. $6.
Continue Reading
This article is part of a series exploring Japanese philosophy and intentional living: