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Purpose of DeciTime

This application is only fun, although there are some benefits from calculating time with the decimal system instead of the 24/60/60 system we are all used to.


One day consists of 24 hours of 60 minutes, each of 60 seconds. This calculates to 86.400 seconds a day.

Why not count this way: One day is 10 decimal hours with 100 decimal minutes, each of 100 decimal seconds. This would sum up to 100.000 decimal seconds a day. So 1 decimal second equals exactly 0.864 second and the decimal time will tick a little bit quicker than the normal time.

To name these decimal things Sergey Zaytsev proposed to call it Dours, Dinutes and Deconds, and so do I with his kind permission.
(See "" for his implementation of a decimal clock).


DeciTime is available as an installation package: (about 266 KB)
It requires Mac OS X 10.4 or later
Since version 1.0.1 it also runs on Mac OS X 10.7 (Lion)!

Usage of DeciTime

Well, nothing complicated to be described! Open the preferences panel from the DeciTime menu, from the dock menu or the context menu of the on-screen clock. There you will find all secrets:



Have fun with this application and send me any suggestions, bug reports and critics to

Sincerely, Robert