Tools · Open source
Dozenal Clock
A dozenal (duodecimal, or base-twelve) clock and homescreen/lockscreen widget.
Download
Opens the official F-Droid page
About Dozenal Clock
A dozenal (duodecimal, or base-twelve) clock and
homescreen/lockscreen widget. Uses "X" for "ten" and "E"
for "eleven." The app itself is full-screen and keeps time
in four-digit Tims (that's 1x10^-4 hours), with the Tims
separated from the whole hours by a semicolon (";"). The
widget keeps time in two-digit Tims (that is, the two
largest Tims), with the Tims separated from the whole hours
by a semicolon (";"). The widget also display the date.
The app updates automatically when open; the widget, in
order to preserve battery life, updates only when the time
is tapped by the user.
How to install Dozenal Clock
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open Dozenal Clock from your app drawer.

