DozAlarm
Utilities
Free
The dozenal number base (base twelve) has long been known to be superior to decimal (base ten). Here's an alarm clock demonstrating that at every time of day!
The Dozenal Suite is a set of apps of dozenal utilities. They run on Apple’s mobiles (with iOS 18 or higher).
On any timing device, the day is divided by successive powers of 12, providing metric time reckoning based on twelves rather than tens. The leftmost digit changes every 2 hours (1/12 day), the next digit every 10 minutes, the next every 50 seconds. If displayed, the fourth digit changes every 4 1/6 seconds and the fifth digit every 25/72 second. That's much simpler and easier than the current time reckoning, which uses a mixture of bases 10, 12, 2, and 60.
In the dozenal number base, because the number 10 is one dozen, numerals ten and eleven must be single digits. They are represented by the symbols invented long ago by Isaac Pitman: rotated 2 for ten, and rotated 3 for eleven. Those are used by the two major dozenal societies, the Dozenal Society of America and the Dozenal Society of Great Britain. In plain text with dozenal numbers, ten is designated by the letter A, and eleven by the letter B.
The app will set up to six alarm times and six snooze times. When the alarm fires, the chosen music or chime plays for about 7 trices (about 29[d] seconds). On the home screen, the set alarm time is displayed as three dozenal digits of diurnal time or in the traditional time format, HH:mm.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor bug fix in the snooze period
The developer, Paul Rapoport, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
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Information
- Seller
- Paul Rapoport
- Size
- 3.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Paul Rapoport