Foreword
For over four centuries, the Gregorian calendar has governed the lives of a large part of humanity. Adopted in 1582 to correct the inaccuracies of the Julian calendar, it has gradually become the global standard for civil, scientific, and economic activities. Its remarkable astronomical precision largely explains its longevity and success. However, it is not without its structural anomalies and oddities. Several of its characteristics, inherited from superstitions and religious beliefs rather than logic, raise practical difficulties and have long fueled proposals for reform.
Let’s look at its main anomalies
1. The unfinished reform of the Gregorian calendar:
The Gregorian calendar, put in place some 440 years ago, was a great methodological advance but it is an unfinished reform which has retained flaws inherited from the Julian and Roman calendars dating back more than two thousand years.
2. Unequal length of months:
When it was first introduced, the Gregorian calendar retained months of varying lengths. Each year, we therefore have one month of 28 or 29 days, four months of 30 days, and seven months of 31 days. We must constantly check the number of days in each month to manage our activities effectively.
3. Birthdays are always on different days of the week:
Depending on the year, January 1st could fall on a Monday one year, a Wednesday the next, and so on. It is impossible for us to reuse the same calendar from one year to the next.
4. An uneven distribution of quarters:
Consequently, the four quarters of the year do not have the same number of days. We have one quarter of 90 days, one of 91 days, and two of 92 days. Financial and statistical comparisons are therefore more complex, and analyses less precise.
5. And the month of February:
With its 28 days, February is an exception. This peculiarity stems from the Roman calendar, which at the time consisted of 355 days: four months of 31 days, seven of 29 days, and one of 28 days. The Romans were very superstitious, and according to their beliefs, even numbers brought bad luck. Therefore, all months had an odd number of days, but to reach the total of 355 days, it was necessary to have one month of 28 days. Since February was the month of the dead, it was accepted that it should have an even number of days. It is clear that the result of this superstition has persisted to this day.
6. Complicated planning:
Schools, businesses, and organizations that need to work with a specific schedule must produce a new one every year. Permanent schedules are currently impossible.
7. Weeks that span two months:
The beginning and end weeks of the month are almost always split across two months. This practice often makes weekly and monthly reports unnecessarily complicated.
8. An impossible perpetual calendar:
Each year requires a different configuration of our calendar. We need fourteen different calendar models to represent all possible combinations.
9. Unnecessarily complicated administrative management:
Months of varying lengths complicate many repetitive tasks such as preparing medications, renewing prescriptions, managing subscriptions, payroll, statistics, and budgets. A more balanced calendar would simplify these operations by offering periods of consistent length.
10. A somewhat rational historical origin:
The Gregorian calendar inherited the flaws of the Roman and Julian calendars. Our calendar was the product of a complex historical evolution rather than a design based on logic, simplicity, and regularity.
The main flaw of the Gregorian calendar is not its astronomical accuracy, but its lack of regularity.
It is precisely to correct these irregularities that the Modern Fixed Calendar was designed. A simpler, more logical calendar, better suited to our modern time management needs. A calendar with which we can say :
We finally have our time under control!
The Modern Fixed Calendar
The Modern Fixed Calendar is :
• A 13-month calendar with 4 weeks of 7 days each.
•The last week of the year is 8 days long, for a total of 365 days.
•In leap years, the last week of the seventh month is also 8 days long, for a total of 366 days.
•Birthday dates are always on the same day of the week.
•According to the international ISO 8601 standard, the week in the Fixed Modern Calendar starts on a Monday.
•For the sake of neutrality, simplicity, and universality, the names of the days and months in the Fixed Modern Calendar are in Esperanto. Using Esperanto also avoids possible confusion with other calendars.
•Only two possible calendar models, the normal year and the leap year.
FINALLY A LOGICAL, STABLE, AND PREDICTABLE CALENDAR.
Total Predictability : The first day of the week is always a Monday (Lundo) and the last a Sunday (Dimanĉo). Birthdays always fall on the same day of the year.
- Economic Fairness :Each month has exactly the same number of working days. No more loss-making Februarys and overloaded Marches for businesses.
Unity Through Language : By using Esperanto (Lundo… Dimanĉo), the calendar becomes neutral and accessible to all, without favoring any specific culture.
Mathematical Simplicity: A year of 13 months of 28 days, plus one extra day at the end of the year, is simple and repetitive math. No more puzzle-solving calendars.
The oddities of the gregorian calendar
Unequal months
Even after several revisions, the calendar is still composed of unequal months, designed on the basis of superstition or religious beliefs:
– 7 months of 31 days
– 4 months of 30 days
– 1 month of 28 days (or 29 days)
A wide variety of anual calendars
There are fourteen different versions of the Gregorian calendar. The current design of the calendar means that consecutive years are all different and birthdays always fall on different days.
Why the Fixed Modern Calendar?
To meet the needs of today’s society, it is necessary to bring order to our calendar and offer a more structured option, free of ambiguities and accessible to all people.
It is to meet this need that the Modern Fixed Calendar was designed: a clean, uniform, and repetitive calendar. The names of the days and months are in Esperanto, a universal language accessible to all people.
The Modern Fixed Calendar, a calendar full of common sense
In conclusion
What if our time finally became simple ?
Today, our calendar is irregular, unpredictable, and unnecessarily complex. Months vary, dates shift, and planning becomes a challenge.
The Modern Fixed Calendar changes everything.
13 months of 28 days. 4 perfect weeks per month. Every date falls on the same weekday, every year. A clear, stable, and logical structure—ideal for work, education, and everyday life. The names of the days and months in Esperanto, a language accessible to all.
And to mark the passage of time, a unique day—Ĝis—concludes the year, outside the weekly cycle, as a universal moment of transition. So less confusion and more consistency.
With the Modern Fixed Calendar : Time finally mastered.
The Excel file of the Modern Fixed Calendar
The following link allows you to download the Modern Calendar as an Excel file. The document consists of three tabs:
- Modern Calendar Rules : Indicates the rules governing the Modern Calendar.
- Modern : Displays the Modern Calendar allowing you to choose the desired year and including a date conversion table between the Gregorian Calendar and the Modern calendar.
- Gregorian : Displays the Gregorian calendar allowing you to choose the desired year.