和時計Japanese timekeeping

See the day the
old Japanese way.

Twelve toki that stretch with the sun, and the 72 microseasons of the year — each shown with the kanji behind it. For iPhone and Apple Watch.

iPhone · Apple Watch · Widgets · No ads. No tracking.
What it shows

A living clock for the turning year

十二時

The toki dial

Six day-toki from sunrise to sunset, six night-toki from sunset to sunrise — each sector as wide as the real hour, for your place and date.

二十四節気

24 sekki

The solar terms of the year on a spinnable carousel, pigmented by season — sakura, matcha, momiji, ai.

七十二候

72 kō

Tiny five-day microseasons — the east wind melts the ice, bush warblers begin to sing — and how far through today's you are.

漢字

Kanji, explained

Kanji, romaji and plain English everywhere, with a character-by-character breakdown, the Chinese origin and notes.

日の出

Computed on device

Everything is worked out from the sun's position and your location. No account, no network — it keeps working for any year.

時計

Watch & widgets

An Apple Watch app with complications, plus Lock Screen and Home Screen widgets to keep the day on your wrist.

SAKURA · spring
MATCHA · summer
MOMIJI · autumn
AI · winter
不定時法The old hours

An hour that breathes with the sun

Before mechanical clocks, Japan divided daylight and darkness into six hours each — so an hour stretched long in summer and shrank in winter. This wadokei draws that dial for your exact place and date, six day toki from sunrise to sunset, six night toki from sunset to sunrise.

十二
toki a day
二十四
sekki a year
七十二
kō a year
Learn as you go

Every term, kanji by kanji

east — the direction the spring wind comes from
wind
kaito loosen, to melt
frozen — together: the east wind melts the ice
Download on the App Store