Showing posts with label 13-Moon Calendar. Show all posts
Showing posts with label 13-Moon Calendar. Show all posts

Wednesday, August 07, 2024

Making the Case for Returning to a 13-Month Calendar [Calendar Reform Blog]

  

In ancient times, and even in some contemporary societies, calendars were 13 months in length, rather than 12. 

The Sol Calendar proposal would bring back the 13-month calendar, and, aside from the superstitious fear of the number Thirteen, it's very much worth considering.

This calendar reform idea was developed by Jim Eikner of Austin, Texas, and consists of a year of 13 months in length with the first 12 months having 28 days each, and the final month of the year, December, having 29. December would have 30 days in leap years, which line up with the leap years in the current Gregorian calendar.

The months are named the same as they are in the Gregorian calendar, except that a month called Sol - named for our Sun - is inserted between June and July, and it is this month that gives the calendar its name.

Although every month within the same year begins on the same day of week, the months begin on different days of the week in different years.

The 13-month Sol Calendar is a new take on a very old idea. It is, in fact, an adaptation of International Fixed Calendar, which in turn has its roots in the Positivist Calendar created by French philosopher August Comte in 1849.

Here's how it works:

In each year, the 29th and 30th days in December move the first day of the January of the following year either one or two weekdays forward in relation to that previous year. 

However, within any given year, monthly calendars for January through November remain identical to each other, in that they start on the same day of the week – and of course, are all 28 days in length.

Some of the great features and benefits of the 13-month Sol Calendar:

• Twelve contiguous and identical months of exactly 28 days
• The thirteenth month of the year (December) has 29 days normally and 30 days in a leap year
• This calendar has the same names for the months as the Gregorian Calendar
• The new month (Sol) occurs between June and July
• Preserves the standard, 7-day week
• Preserves Gregorian leap year rule
• Almost all professional accounting systems offer a 13-period reporting option
• Computer accounting programs will likely be easily adjusted to 13 months
• Placing the new month (Sol) at mid-year minimizes the seasonal displacement of the traditional months
• Placing the extra day(s) at the end of the year allows all months to be identical for their first 28 days in any given year
• Leap years are every four years (in the same years we currently have leap years) and they add a 366th day to December (a Dec. 30), the same number of days the Gregorian calendar adds during a leap year

Overall, as a practical matter, this calendar effectively addresses some current concerns with the Gregorian calendar.

Unlike our current jumble of month sizes, the Sol Calendar's 28-day months can easily be remembered, and the leap year is more rationally located at the end of the year, rather than tucked after February (which hasn't been considered the end of the year for many centuries.)

Since each month's calendar is the same for the first 11 months (and identical through the 28th day every month) it's easy to remember that the 27th day of every month in 2011, for example, was a Wednesday.

Learn more here: http://www.abbottepub.com/newcal.html

Sunday, February 04, 2024

5 Ways To "Re-Boot" Our #Calendar [#CalendarReform Blog]

 

Is our calendar perfect? Few would argue that it is. The number of days in each month are uneven, its quarters are unequal, and it's impossible to determine when on which day of the week any random date will fall.

But it turns out, there are many, many other - arguably better - ideas to reform it and make how we mark time more predictable and easier.

Here are just FIVE:

1. The 13-Moon Calendar. Inspired by the ancient Mayan Long-Count calendar, this proposal to reform the current Gregorian calendar re-names all the months, and introduces other innovations, including an extra month, which approximates many ancient calendars.

2. The Symmetry454 Calendar is a proposal by a Toronto university professor. It features four exactly equal quarters of 28-, 35- and 28-day months, making it easier to compare fiscal quarters. It's beautiful symmetry contrasts with the chaotic Gregorian.



3. The 13-month "Sol" Calendar updates an Old Idea - the 13- month year tied to the lunar cycle. This calendar's 13 months are all 28 days long, making it easy to remember the length of months. A leap year is added to the last month, December, and a new month, Sol, is added between June and July.

4. The New Earth Calendar is a bit of a hybrid - mixing the best elements of proposals like the Symmetry454 calendar and the 13 months of the Sol calendar.

5. Finally, the 30x11 Calendar is what its creator calls a "Gentle Update" of our current calendar. All of its months are 30 days long, except December, which rounds out the 365 or 366-day year with 35 or 36 days. It makes it incredibly easy to determine what day number each day on the calendar holds, and makes it easy to remember days.

All of these calendars - and MANY MORE - can be found EXCLUSIVELY on the new Abbott ePublishing eBook "A New Calendar for The World" available from the Abbott ePublishing website.

Saturday, May 01, 2021

eBook Features Calendar Reform Concepts

A new eBook covers many of the new calendar concepts discussed in this blog over the years.

"A New Calendar for the World" features many excellent calendar reform ideas, set amongst the backdrop the failed "End of the Age" event in 2012. Whether the age actually will end in the future (and the book is neutral on that matter - and in fact barely deals with these predictions) the time may indeed be ripe for a new calendar, as this blog has argued in the past.

Among the ideas floated in the eBook (which costs only $1.99) are:

The 13-Moon Calendar: Inspired by the Maya

The Symmetry454 Calendar: Beautiful Symmetry

The 13-month "Sol" Calendar: Updating an Old Idea

The New Earth Calendar: A Worthy Hybrid

The 30x11 Calendar: A Gentle Update of our Calendar

The book also features numerous "experimental" calendars that are more than a useless exercise. They are actually creative, and are good starting points for discussions on how our calendar can serve human beings, and not the other way around.

The eBook is published by Abbott ePublishing and can be bought at http://www.abbottepub.com/newcal.html.

Tuesday, December 01, 2020

5 Ways To "Re-Boot Our Foolish Calendar

Few would argue that our calendar is perfect. The number of days in each month are uneven, its quarters are unequal, and it's impossible to determine when on which day of the week any random date will fall.

That said, very few people know that there are many, many great ideas to reform our calendar and make how we mark time more predictable, and easier.

Here are just FIVE great concepts to reform our current calendar:

1. The 13-Moon Calendar. Inspired by the ancient Mayan Long-Count calendar, this proposal to reform the current Gregorian calendar re-names all the months, and introduces other innovations, including an extra month, which existed in many ancient calendars.

2. The Symmetry454 Calendar is a proposal by a Toronto university professor. It features four exactly equal quarters of 28-, 35- and 28-day months, making it easier to compare fiscal quarters. It's beautiful symmetry contrasts with the chaotic Gregorian. 

3. The 13-month "Sol" Calendar updates an Old Idea - the 13- month year tied to the lunar cycle. This calendar's 13 months are all exactly 28 days long, making it easy to remember the length of months. A leap year is added to the last month, December, and a new month, Sol, is added between June and July.

4. The New Earth Calendar is a bit of a hybrid - mixing the best elements of proposals like the Symmetry454 calendar and the 13 months of the Sol calendar.

5. Finally, the 30x11 Calendar is what its creator calls a "Gentle Update" of our current calendar. All of its months are 30 days long, except December, which rounds out the 365 or 366-day year with 35 or 36 days. It makes it incredibly easy to determine what day number each day on the calendar holds (March is always the 61st day of the year) and makes it easy to remember days.

All of these calendars - and MANY MORE - can be found EXCLUSIVELY on the new Abbott ePublishing eBook "A New Calendar for The World" available from the Abbott ePublishing website.

Wednesday, June 19, 2019

5 Ways to "Re-Boot" Our Stupid, Irrational, Failed Calendar [#CalendarReform Blog]


Few would argue that our calendar is perfect. The number of days in each month are uneven, its quarters are unequal, and it's impossible to determine when on which day of the week any random date will fall.

That said, very few people know that there are many, many great ideas to reform our calendar and make how we mark time more predictable, and easier.

Here are just FIVE concepts to reform our current calendar:

1. The 13-Moon Calendar. Inspired by the ancient Mayan Long-Count calendar, this proposal to reform the current Gregorian calendar re-names all the months, and introduces other innovations, including an extra month, which approximates many ancient calendars.

2. The Symmetry454 Calendar is a proposal by a Toronto university professor. It features four exactly equal quarters of 28-, 35- and 28-day months, making it easier to compare fiscal quarters. It's beautiful symmetry contrasts with the chaotic Gregorian.



3. The 13-month "Sol" Calendar updates an Old Idea - the 13- month year tied to the lunar cycle. This calendar's 13 months are all 28 days long, making it easy to remember the length of months. A leap year is added to the last month, December, and a new month, Sol, is added between June and July.

4. The New Earth Calendar is a bit of a hybrid - mixing the best elements of proposals like the Symmetry454 calendar and the 13 months of the Sol calendar.

5. Finally, the 30x11 Calendar is what its creator calls a "Gentle Update" of our current calendar. All of its months are 30 days long, except December, which rounds out the 365 or 366-day year with 35 or 36 days. It makes it incredibly easy to determine what day number each day on the calendar holds, and makes it easy to remember days.

All of these calendars - and MANY MORE - can be found EXCLUSIVELY on the new Abbott ePublishing eBook "A New Calendar for The World" available from the Abbott ePublishing website.

Saturday, May 14, 2016

5 Ways To "Re-Boot" Our #Calendar [#CalendarReform Blog]

Is our calendar perfect? Few would argue that it is. The number of days in each month are uneven, its quarters are unequal, and it's impossible to determine when on which day of the week any random date will fall.

But it turns out, there are many, many other - arguably better - ideas to reform it and make how we mark time more predictable and easier.

Here are just FIVE:

1. The 13-Moon Calendar. Inspired by the ancient Mayan Long-Count calendar, this proposal to reform the current Gregorian calendar re-names all the months, and introduces other innovations, including an extra month, which approximates many ancient calendars.

2. The Symmetry454 Calendar is a proposal by a Toronto university professor. It features four exactly equal quarters of 28-, 35- and 28-day months, making it easier to compare fiscal quarters. It's beautiful symmetry contrasts with the chaotic Gregorian.



3. The 13-month "Sol" Calendar updates an Old Idea - the 13- month year tied to the lunar cycle. This calendar's 13 months are all 28 days long, making it easy to remember the length of months. A leap year is added to the last month, December, and a new month, Sol, is added between June and July.

4. The New Earth Calendar is a bit of a hybrid - mixing the best elements of proposals like the Symmetry454 calendar and the 13 months of the Sol calendar.

5. Finally, the 30x11 Calendar is what its creator calls a "Gentle Update" of our current calendar. All of its months are 30 days long, except December, which rounds out the 365 or 366-day year with 35 or 36 days. It makes it incredibly easy to determine what day number each day on the calendar holds, and makes it easy to remember days.

All of these calendars - and MANY MORE - can be found EXCLUSIVELY on the new Abbott ePublishing eBook "A New Calendar for The World" available from the Abbott ePublishing website.