Compiled from 4 sources; we haven't tested this product ourselves yet. How we research
Quick answer
The Koyomi Seikatsu Techo (暦生活手帳) is a Japanese A5 planner from Shin Nihon Calendar's Koyomi Seikatsu site, built around the traditional calendar: colour bands for the 24 seasonal terms, moon phases and seasonal foods. The 2027 edition has 208 pages, monthly and weekly-block pages, a PVC cover and costs ¥2,200 (about US$14). It is made in Japan.
On this page9 sections
The three 2027 covers and a weekly spread, A5 at 1 mm = 1 px.
Paper book block in a PVC cover, one ribbon marker
Price range
$$$5–20 per notebook
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Notes on these facts
Made by Shin Nihon Calendar Co., Ltd. (新日本カレンダー株式会社). Made in Japan: The Koyomi Seikatsu (543life) store's spec table lists 製造国 日本 (country of manufacture: Japan) for the 2027 edition. Source.
Price bands are typical US retail, checked October 2026. Conversions to US dollars are approximate, at October 2026 rates (US$1 = ¥158 = ₩1,330 = NT$32.5 = CN¥6.7 = SEK 9.9 = DKK 6.7 = ₺49.6 = C$1.41 = A$1.43 = CZK 21.7; €1 = US$1.12; £1 = US$1.32; CHF 1 = US$1.21).
Key takeaways
Japanese shop staff named the Koyomi Seikatsu Techo the planner winner (手帳賞) of the Bungu-ya-san Taishō 2026.
The 2027 edition is A5, 210 × 148 mm (8.3 × 5.8 in), with 208 pages, at ¥2,200 (about US$14) with tax on the 543life store.
Monthly pages run from December 2026 to January 2028 and weekly-block pages from January to December 2027, plus 15 pages of grid notes.
It comes in three cover colours: Gekko (moonlight), Mizuasagi (pale aqua) and Usufuji (pale wisteria).
The store lists the country of manufacture as Japan.
What is the Koyomi Seikatsu Techo?
It is an A5 planner that puts Japan’s traditional calendar on every page: the 24 seasonal terms, the 72 micro-seasons, moon phases and what is in season. The name means “calendar living planner”.
Koyomi Seikatsu (暦生活) is a web and social media brand run by Shin Nihon Calendar, a Japanese calendar maker, about enjoying the seasons. Its store says its social accounts have more than 600,000 followers in total, and the planner gathers that content into a book you write in.
Japanese shop staff named the 2026 edition the planner winner (手帳賞) of the Bungu-ya-san Taishō 2026. The store now sells the 2027 edition with the award noted on its page, and says the photos of the planner still show the 2026 cover colours.
The store describes it as a life-log planner: a place to note what you noticed in the season that day, seasonal recipes or a short diary, rather than only appointments.
Koyomi Seikatsu Techo 2027 specs
Spec
Value
Publisher
Shin Nihon Calendar (Koyomi Seikatsu)
Size
A5, 210 × 148 mm (8.3 × 5.8 in), book block
Pages
208
Layout
Monthly, then weekly block (1 week per spread)
Monthly pages
December 2026 to January 2028
Weekly pages
January to December 2027
Extras
Year planner, age chart, 15 pages of grid notes
Cover
PVC, gold-foil moon character
Colours
Gekko, Mizuasagi, Usufuji
Ribbon
1
Price
¥2,200 (about US$14) with tax
Made in
Japan
All figures are from the 543life store’s spec table for the 2027 edition, read October 23, 2026.
What is on the pages?
Each week sits on one spread in day blocks, with the current seasonal term shown as a coloured band, plus dense calendar notes. The store lists the 24 seasonal terms and 72 micro-seasons, moon phases, the old lunar calendar, rokuyō, festivals, constellations, lucky days such as tenshanichi and ichiryū manbaibi, sunrise and sunset times and seasonal foods.
Every month opens with a photo and a traditional Japanese colour on the left page, with notes on that month’s seasonal terms on the right. There are weekly columns and a weekly quiz hosted by the moon character, Otsuki-kun, who also appears in gold foil on the cover.
At the back, appendix pages include a seasons planner, a recipe for each month, names for the moon and a page of seasonal words (kigo).
How big is it compared with other planners?
It is a full A5, the size of the Hobonichi Cousin, so there is room to write but it is not a pocket planner.
If you are choosing a layout for the first time, our planner guide explains weekly blocks against vertical weeks.
How can you buy it outside Japan?
We found no US retailer on October 23, 2026: buy from the 543life store or a Japanese retailer through a proxy or forwarding service. Shin Nihon Calendar’s store ships within Japan by Japan Post.
At ¥2,200 (about US$14) it sits in our $$ band ($5–20) before international shipping and proxy fees.
Where is the Koyomi Seikatsu Techo made?
In Japan, according to the spec table on Shin Nihon Calendar’s 543life store. The planner is a Japanese-language edition, so its seasonal text is not translated.
Frequently asked questions
What are the 24 seasonal terms in the Koyomi Seikatsu Techo?
They are the nijūshi sekki, the old East Asian calendar's 24 divisions of the year, such as Risshun (start of spring) and Kanro (cold dew). The planner marks each with its own colour band and a small illustration.
Is the Koyomi Seikatsu Techo in English?
No. It is a Japanese edition: the columns, quizzes and seasonal notes are in Japanese, though dates and the weekly grid work in any language.
Does the Koyomi Seikatsu Techo start on Monday or Sunday?
The store doesn't say in its spec table, and one store review asked Shin Nihon Calendar to add a Sunday-start version, so check a sample page before buying.
Who makes the Koyomi Seikatsu Techo?
Koyomi Seikatsu (暦生活) is a web media brand run by Shin Nihon Calendar, a Japanese calendar maker, which sells the planner on its own 543life online store.
How much does the Koyomi Seikatsu Techo cost?
The 2027 edition is ¥2,200 (about US$14) with tax on the maker's store, in our $$ band ($5–20) before shipping from Japan.
Is there a daily-page version?
Not of this planner: the Koyomi Seikatsu Techo is a weekly-block book with monthly pages. Shin Nihon Calendar sells other diaries and day-by-day calendars on the same store.
