72 Seasons: Shichijūniko72 Seasons: Shichijūniko
A year is made of seventy-two seasons.
Download on the App Store
Screenshots
Features
Today's Season
See the current micro-season at a glance — its poetic name, reading, meaning and exact dates — with a progress bar through the current solar term and a countdown to the next turning.
The 72 Seasons Guide
Browse all seventy-two micro-seasons in one almanac, grouped by solar term, each with its reading, its story and this year's dates.
The 24 Solar Terms
From Risshun, the first spring, to Tōji, the longest night — the deeper rhythm of the year laid out in a single grid.
Home Screen Widget
Today's micro-season, always on your home screen. The widget quietly changes every five days or so — a tiny surprise of the calendar.
Precise Astronomy
Every date is computed from the sun's actual position along the ecliptic (solar longitude), not copied from fixed tables — so each season begins exactly when it should.
Offline and Private
Works completely offline, collects no data and requests no permissions. A one-time purchase with no ads and no subscriptions.
In old Japan, a year was not four seasons — it was seventy-two.
Every five days or so, the world turns a page: "East wind melts the ice." "Mist starts to linger." "Silkworms wake and eat mulberry." These are the shichijūniko, Japan's 72 micro-seasons — a calendar written not in numbers but in the small movements of wind, birds, plants and light. Above them sit the 24 sekki, the solar terms that mark the deeper rhythm of the year: Risshun, the first spring; Geshi, the summer solstice; Tōji, the longest night.
Shichijūniko brings this calendar to your pocket — and to your home screen.
TODAY'S SEASON
- The current micro-season with its poetic name, reading and meaning
- The current solar term (sekki) and where you are inside it
- Exact dates for each season, computed astronomically from the sun's position
- A countdown to the next turning of the season
HOME SCREEN WIDGET
- See today's micro-season at a glance, right on your home screen
- The widget quietly changes every five days — a tiny surprise of the calendar
THE 72 SEASONS GUIDE
- All 72 micro-seasons and 24 solar terms in one browsable almanac
- Readings, romaji and a short story behind each name
- Perfect companions for haiku, seasonal letters, tea, photography and walks
Shichijūniko works completely offline, collects no data, and needs no permissions. Open it once a week — or just glance at your home screen — and feel the year turning.