Dozenal Time

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Dozenal time is a common proposal for a time system in Duodecimal. There are multiple systems for how this could work. The most common is dividing the day into two dozen hours[1], which would keep the current hour. Using this system, the time 12:45pm would be 10;9, since this is 12.75 in decimal and 12:45pm is 12.75 hours into the day. Most dozenal clocks use this system.

The other system is to split the day into twelve "dours"[2], which comes from "duo" + "hours". The minute would then be 50 seconds, which is 1/144 (1/12^2) of a dour, and the second would be 1/1728 (1/12^3) of a dour, which is about 4 seconds in our current time system. No names have been suggested for the ten-minute-long unit between dour and minute, although there are informal names life "coffee break"[3].

Spiltting up the day

The proposal of a dozenal time system comes from the French's Decimal time, however, people realised it is not easy to split up the day with decimal time. You could not say 20 minutes past the hour becuase using decimal time that would be 33.3333... minutes past the hour. Using dozenal time it is much easier to split up the day, and the hour, whichever system you use, because 12 has six factors and 10 only has four. If you use the first system, you can split up the day even more due to the extra factor of 2.[4]

Advantages

  • It would be easier to split up the day.
  • The numbers on Clocks would mean the same thing for all units of time.

Disadvantages

  • It would be hard to switch over from the current system.
  • There is no standard to what numbers are used for the digits ten and eleven.

References

  1. Bellos, Alex (2012-12-12). "Dozenalists of the world unite! Rise up against the tyranny of ten!". The Guardian. ISSN 0261-3077. Retrieved 2023-05-14.
  2. "Time Units". www.dozenalsociety.org.uk. Retrieved 2023-05-14.
  3. "Dozenal time intuition". www.theobeers.com. Retrieved 2023-05-14.
  4. "flud blog". Retrieved 2023-05-14.

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