# Digital Japanese Clock — Enjoy life in the Edo period!

> Digital clock simulating Edo period's indefinite timekeeping method. (iPhone/iPad app by Mihoko Araki.)

- Source: https://appshunter.io/ios/app/digital-japanese-clock/id1665402709 (this page in markdown: same URL + `.md`)
- Developer: [Mihoko Araki](https://appshunter.io/developer/1476136915)
- Category: Utilities, Lifestyle
- Price: Free with in-app purchases
- Rating: 2.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 6 MB
- Languages: Dutch, English, French, German, Japanese, Portuguese, Russian, Chinese, Spanish, Chinese
- Released: 2023-01-16
- Data updated: 2026-07-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/digital-japanese-clock/id1665402709/reviews.md

## What is Digital Japanese Clock?

A wadokei is a mechanical clock made in Japan during the Edo period.

At that time, Japan used a unique time system called the "indefinite time method". It is a method of dividing the day into day and night and then dividing each into equal parts. 

The common people of the Edo period began their day's activities by listening to the "dawn six bells" about 30 minutes before sunrise and ended their activities by listening to the "dusk six bells" about 30 minutes after sunset. 

Naturally, the time of sunrise and sunset varied with the seasons, so the time of bell ringing and the length of the unit of time, ittoki, between day and night also changed greatly. But not only was this perfectly acceptable at the time, it was also an eco-friendly way of living that suited their body rhythms very well.

This app is a digital representation of this indefinite time method. 

The hour bells can be switched not only to the sound of bells, but also to drums, cannons, cuckoo, pillar clocks, etc. The main display can be selected from zodiac signs, numerals, and emojis. 

You can open the settings screen by tapping twice on the main display or by tapping the settings icon. You can change the background color, font, time methods, show/hide sub-clock, etc. here. 

The sub-clock in the lower left corner of the screen can also display a modern clock. You can switch the display between 24 hours, 12 hours, numerals, and zodiac signs with each tap.

Please use this application and experience the rhythm of life in the Edo period. Perhaps you will discover something good.

## Key features

- Indefinite time method simulation
- Customizable bell sounds (drums, cannons, cuckoo)
- Multiple display options (zodiac, numerals, emojis)
- Adjustable background color and font
- Optional modern sub-clock display
- Settings for time methods and display elements

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| No Ads | $1.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/digital-japanese-clock/id1665402709/reviews.md

### 2/5 — Hmmmm

*2026-01-05*

A very nice looking app, but it does not seem to work. No chime.  It is turned on.  If it requires the phone to be unlocked & app open, it is useless to me. No way to contact developer, I hope it is not abandoned.  Would’ve been 5 stars if sound worked.

## Frequently asked questions about Digital Japanese Clock

### What is the indefinite time method used by Digital Japanese Clock?

The indefinite time method, used in Japan's Edo period, divides the day and night into six equal parts. The length of these 'ittoki' periods changes with the seasons, as sunrise and sunset times vary.

### Can I change the sounds on Digital Japanese Clock?

Yes, you can switch the hour bell sounds to options like drums, cannons, or a cuckoo clock. This allows for a more personalized and immersive experience of Edo period timekeeping.

### What display options are available on Digital Japanese Clock?

The main display can be set to show zodiac signs, standard numerals, or emojis. You can also choose to show or hide a sub-clock that can display modern 12 or 24-hour time.

### How do I access the settings in Digital Japanese Clock?

You can open the settings screen by tapping twice on the main display or by tapping the dedicated settings icon. This allows you to customize various aspects of the clock's appearance and functionality.

### Does Digital Japanese Clock have ads?

Yes, Digital Japanese Clock contains advertisements. These ads are displayed to support the free version of the application.

### What devices is Digital Japanese Clock compatible with?

Digital Japanese Clock is available for iPhone, iPad, and iPod. It is designed to function across these Apple devices.

### When was Digital Japanese Clock last updated?

The latest version of Digital Japanese Clock, 1.1.7, was last updated on December 16, 2025. This indicates recent development and potential for ongoing improvements.

### What is the age rating for Digital Japanese Clock?

Digital Japanese Clock has an age rating of 4+. This means it is considered suitable for children aged four and older, with no mature content.

## Version history (last 5 releases)

### 1.1.8 — 2026-07-28

- Bug fixes and performance improvements.

### 1.1.7 — 2025-12-16

- Bug fixes and performance improvements.

### 1.1.6 — 2024-08-31

- Bug fixes and performance improvements.

### 1.1.5 — 2024-06-17

- Bug fixes and performance improvements.

### 1.1.4 — 2024-06-11

- Bug fixes and performance improvements.

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## More apps by Mihoko Araki

- [Art Calc: Colorful Calculator](https://appshunter.io/ios/app/art-calc-colorful-calculator/id1476137216)
- [Daughter in the Box +](https://appshunter.io/ios/app/daughter-in-the-box-plus/id1533574000)
- [Amabie's Magical Walk](https://appshunter.io/ios/app/amabies-magical-walk/id1536266853)
- [Minimum Clock](https://appshunter.io/ios/app/minimum-clock/id1543594398)
- [Ninja Power Test](https://appshunter.io/ios/app/ninja-power-test/id1558327015)
- [Minimum Timer](https://appshunter.io/ios/app/minimum-timer/id1563505740)

All apps by Mihoko Araki: https://appshunter.io/developer/1476136915

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-29.*