Decimal Clock
Tools In-app purchases Contains ads
Decimal clock using a base-10 system: 10 hours per day, 100 minutes per hour
- Downloads
- 500+
- on Google Play
- Price
- Free
- In-app purchases
- Updated
- Aug 20
- 2026 · v1.3.6
Screenshots
About Decimal Clock
Decimal Clock displays time using a decimal (base-10) time system instead of the traditional 24-hour format.
In decimal time:
• One day has 10 hours
• One hour has 100 minutes
• One minute has 100 seconds
Decimal time is an alternative way to represent the day, designed to make timekeeping more consistent with the decimal number system.
Features
• Displays the current time in decimal format
• Several clock themes and a clear, modern interface
• Optional home-screen widget
• Time converter between decimal and regular time
• Option to show regular time alongside decimal time
• Useful for learning and exploring decimal time
Wear OS watch face
A companion Decimal Clock watch face for Wear OS is also available on Google Play:
https://play.google.com/store/apps/details?id=com.krass.decimalclock.watchface
Who is this app for?
• People interested in alternative time systems
• Students and educators exploring decimal concepts
• Developers, engineers, and scientists
• Anyone curious about non-standard timekeeping
Note
Decimal Clock is an alternative representation of time and does not replace the standard clock.
Advertising
The application may display ads to support development. An optional purchase removes ads.
In decimal time:
• One day has 10 hours
• One hour has 100 minutes
• One minute has 100 seconds
Decimal time is an alternative way to represent the day, designed to make timekeeping more consistent with the decimal number system.
Features
• Displays the current time in decimal format
• Several clock themes and a clear, modern interface
• Optional home-screen widget
• Time converter between decimal and regular time
• Option to show regular time alongside decimal time
• Useful for learning and exploring decimal time
Wear OS watch face
A companion Decimal Clock watch face for Wear OS is also available on Google Play:
https://play.google.com/store/apps/details?id=com.krass.decimalclock.watchface
Who is this app for?
• People interested in alternative time systems
• Students and educators exploring decimal concepts
• Developers, engineers, and scientists
• Anyone curious about non-standard timekeeping
Note
Decimal Clock is an alternative representation of time and does not replace the standard clock.
Advertising
The application may display ads to support development. An optional purchase removes ads.
What’s new
Version 1.3.6 · Updated August 20, 2026
• Improved the time converter. • Technical improvements and stability updates.
User reviews
As someone who recently questioned our current time formats and stumbled across decimal time, I found this app to be straight forward and interesting. Although for it to be truly useful there really needs to be a way to display Decimal base time on the toolbar and lock screen. to acess the app my eyes pass over mult...
Finally a decimal clock already exists for modern phones, thank you. 🙏 Edit: Also, you should add a stopwatch and timer to this app, it would be nice to have a stopwatch and timer in decimal time, also thank you for your reply, I appreciate it. 😊
I like it! However, a "provision" to display the metric time on the phone screens could be fun, just a thought.
It Literally Does What It Says It Will, No Ads Included, 3 Backgrounds For The Clock, PERFECTION
Nice and unique watch need to a few improvements
Alternatives to Decimal Clock
Looking for apps like Decimal Clock? Here are 3 similar Android apps on Google Play. 2 of the 3 are free to download.
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| Decimal Clock | – | Free | 500+ | Aug 20, 2026 | |
| Decimal Clock for Wear OS | – | 1.99 USD | 1+ | Aug 24, 2026 | Compare |
| Done? | – | Free | 10+ | Sep 3, 2026 | Compare |
| Photos of samples | – | Free | 5+ | Dec 20, 2025 | Compare |
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