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31.10.2025
More Decitime: The Mortimerian Calendar

The Mortimerian Calendar is a thought experiment dreamt up by myself to decimalise time. The original concept began with the idea of creating a decimal clock system that functions under the premise of having ten decimal hours (dours) in a day, 100 decimal minutes (dinutes) in a dour, and 100 decimal seconds (deconds) in a dinute (identical in nature to the time system partially adopted in France from 1794 to 1800 during the French Revolution).

Here, however, I have taken the matter a stage further and designed a decimal calendar comprising of ten months in a year and ten days in a week, thus making it so that the months alternate between having 36 and 37 days respectively. The days of the week are based on the bodies of the solar system in sequence from the sun outwards, with an additional zero day (Lunaday/Monday) occurring at the beginning of the first month every four years to accommodate the leap year.

The example calendar system I have produced here is created from the next leap year, 2028, through to the end of 2031 where one will notice that the calendar system resets back to default, thus making 2028 identical to 2032 in composition. In fact, taking the Lunaday leap year adjustment out of the equation one will notice that the calendar actually resets back to its default composition every two years.

The first six months have been renamed Januber, Februber, Mariber, Apriber, Maber, and Sextimber to fit in more closely with the names of the last four months of the year, allowing September, October, November and December to make more sense again regarding their original linguistic meaning.

Also, realising that a ten day week might feel somewhat long, I have added the idea of holidays/free days throughout the week so that one doesn't have to work more that two days in a row before getting some time off. This then comes close to the idea of adopting the current four day working week idea but with less chance of burnout.

As for Christmas Day, if we have it as usual occurring one week before the start of the New Year (in this case ten days before the beginning of Januber) it will occur on the 27th of December which, by a lovely coincidence, is also the date that the Winter Solstice falls on when using this calendar. This is the date that Christmas should occur on anyway having absolutely nothing to do with the birth of a fictional Man-God and everything to do with having been adopted from the original pagan midwinter celebration/festival.