Our calendar system should be simple as the clock system, and every year should use the same calendar without renewal. "Weeky calendar" is a proposed calendar system that follows the current dates, but the days of the year have fixed days of the week. Then, every quarter has 13 weeks from Monday to Sunday, and every year has exactly 52 weeks.


Weeky Calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)
 Today is 
is the of the year. It is called a Weeky Date.
100% Compatible with the Gregorian Calendar

Complete, Consistent, Versatile & Perennial

100% Work in Parallel with the Current Calendar

The Best-ever & Most Viable Calendar Upgrade

100% Free Adoption Anytime Without Transition

Simple, Logical, Practical & Benefiting all People

Pragmatic & Saving Money for all Businesses

How much do you know?

  • A Gregorian calendar year can have 52 or 53 weeks. Many people think the leap year has 53 weeks, but this is incorrect. According to ISO-8601, every 28 years have five years with 53 weeks if the period does not cross the final year of any century with its leap day skipped. Any year starting on Thursday and any leap year starting on Wednesday have 53 weeks. Every 28 years have four years starting on Thursday, such as 2004, 2009, 2015, and 2026 from 2001 to 2028. Furthermore, 2020 was the leap year beginning on Wednesday, and the next leap year starting on Wednesday will be 2048 (i.e., after 28 years).

  • Every 28 years have five years with 53 Saturdays if the period does not cross the final year of any century with its leap day skipped. The five years include one leap year beginning on Friday and four years starting on Saturday. By searching the Internet, the leap year of 2028 will begin on Friday and have 53 Saturdays. Then, 2033, 2039, 2044, 2050, and 2056 will have 53 Saturdays in the next 28 years (i.e., from 2029 to 2056).

  • No astronomical reason causes or supports irregular months, but the months can never have equal days. They initially followed the moon cycle, an average of 29.53 days, with either 29 or 30 days. Later they were one-twelfth of 365 or 366 days a year and became either 30 or 31 days. However, the distributions of 30 and 31 days were somehow arbitrary or due to some religious beliefs. It was unexplained why only February has 28 days shorter than the minimum length of 29 days. Even surprised, the irregular months have no alignment with weeks, quarters, or seasons. Unfortunately, the uneven months without any alignment bring us much inconvenience. All proposals for calendar reform suggest some new month structures with equal month length or in a consistent pattern. Because of the thousand-year linkage of history, cultures, and traditions into the existing month structure, it was unaffordable to alter the uneven months. None of the proposals were accepted. Thus, we have to keep the irregular months until now.

  • Rationally, all quarters of the year should start on the same day of the week, but they are not. A quarter must have exactly 91 days or 13 weeks to cause the next quarter to begin on the same day of the week. In the leap year of the Gregorian calendar, the first two quarters have 91 days (i.e., 13 weeks). Thus, only the first three quarters can start on the same day of the week. In the common years, only the second quarter has 91 days. Thus, only the second and the third quarter can start on the same day of the week. Since the sum of the first three quarters has 273 days (i.e., 39 weeks), the first and the fourth quarter can start on the same day of the week but are different from the start day of the second and the third quarter. Because of the uneven months in an irregular pattern, the quarters can never start on the same day of the week.

  • In brief, February was the last month added by Numa Pompilius around 713 BCE. Along with the Roman age, February was usually the shortest month having various lengths, and it finally had 29 days. Under the reforms that instituted the Julian Calendar around 46 BCE, February 29 became the leap day in the leap year until now. Julius Caesar promoted January and February as the first and second months of the year. That made the New Year start in the deep Winter instead of the Spring. In the reform to the Gregorian calendar by just skipping three leap days from the Julian calendar every 400 years, the leap day was still in February. Rationally, the leap day should be the final day of the year. At least, it shall be on the last day of a long month with 31 days.

  • In the Gregorian calendar, each day of the week occurs in 4 years every 28 years if the period does not cross the final year of any century with its leap day skipped. By searching the Internet, 2001, 2007, and 2018 began on Monday, and the leap year 2024 will start on Monday from 2001 to 2028. We can deduce that 2029, 2035, 2046, and 2052 will begin on Monday in the next 28 years.

  • Friday the 13th is considered an unlucky day in Western superstition. It occurs when the 13th day of the month in the Gregorian calendar falls on a Friday, which happens at least once every year but can occur up to three times in the same year. Any month that starts on “Sunday” will have the 13th day on Friday. There are 688 Fridays on the 13th day every 400 years. It means an average frequency of 1.72 per year. Any leap years starting on Sunday will have three Fridays on the 13th day of January, April, and June, such as 2012 from 2001 to 2028. Any common years beginning on Thursday will have three Fridays on the 13th day of February, March, and November, such as 2009, 2015, and 2026 from 2001 to 2028. Thus, 2037, 2040, 2043, and 2054 will have three Fridays on the 13th day in the next 28 years (i.e., from 2029 to 2056).

  • In the Gregorian calendar, it will take 5, 6, or 11 years to bring you to have your birthday on the same day of the week you were born. The pattern of either 5, 6, or 11 years will continue. However, we usually do not remember the day of the week we were born. Furthermore, only a few people know how to work out what day will start in the coming years, so it is difficult to know which year will our birthdays fall on the same day of the week we were born.

  • The Gregorian calendar changes every year because it must align 365 or 366 days into the weeks with strict seven days, in which the year can have 52 or 53 weeks. Although school schedules can repeat annually, all schools must revise their calendars annually to follow the renewed calendars. That is why people are difficult to remember the school-term dates of any school year. The calendrical research and studies suggested that a calendar should be perennial without any annual renewal. Every date in a year having its fixed day of the week will be much more suitable for using daily and as our civil calendar.

  • A solar year is approximately 365.242189 days long, though its length changes little over time. The Gregorian calendar was a calendar reform in 1582 to correct the inaccuracy of the Julian calendar, which had 11 days drifted off within 1580 years. Since the Gregorian calendar skips three leap days of the Julian calendar every 400 years, its average of 365.2425 days is by 365.25 days minus (3/400). Although the Gregorian calendar will have one day drifted off over three thousand years, it is still accurate. However, it is a stiff week-based system with fixed 20,871 weeks every 400 years. It is impossible to skip any leap day as a calibration. Nothing is constant in the Universe, while everything is evolving and changing. The current observed year length may not be equivalent to the past or future year length. Thus, an accurate calendar system should allow a skip of the leap day in any leap year by following the astronomical observances of the Earth's Orbit. The Gregorian calendar cannot take any calibration.

Why calendar upgrade?

Uneven, Unexplained & Confusing!

Don't worry if you don't know the answer or are uncertain about your answers. 99% of people cannot tell what day will start in the coming months, and 99.9% don't know the current week number of the year. We all rely on some paper or software calendars. Why do we know very little about the calendar? Why did we not learn that from school? Since the current calendar system has irregular months and can start from any day of the week, it is complicated, unexplained, and likely incomplete. Because of its confusing and somehow unstructured design, the Gregorian calendar is not an easy teaching topic. So no one includes it in the school syllabus. The calendar as our daily system should be as simple as the clock or the Metric system instead of complicated and confusing. Nevertheless, we learn the general calendar usage from our parents or seniors, then we dogmatically follow and use it in our life.

Why Wasting Effort, Time & Money?

Our calendar inherited its messy history. In brief, the ancient Roman calendar started with just ten months in a year. January and February were the last months added into the year. Julius Caesar promoted them as the first and second months of the year. He also changed New Year’s Day from March of Spring to the first day of January in the deep Winter. The Gregorian calendar slightly reformed the Julian calendar. It retained the same irregular months without any alignment with weeks, quarters, or seasons. Its uneven months confuse us about what day will start in the coming months. It must renew annually from one of its 14 calendar versions and troubles people and businesses forever. Overall, it always confuses our memory, wastes our effort, and spends our resources dealing with its annual variations. That complicated calendar system should not be our daily system in this modern age.

Waiting for Upgrade...

The year with such an irregular and varying structure seems incomplete. I felt uneasy while teaching my little son to read and use the calendar, even though many were unexplainable in the calendar system. There have been many attempts at and proposals for calendar reform but all failed. They suggested some simple and consistent month structures replacing the uneven months, such as 31 days for the first month of each quarter and 30 days for others. The proposed calendars were simple, but that will mess up all existing documents and computer systems. Conversion among dates will be unavoidable for dealing with the derived differences, and the enormous transition cost will never be affordable.

Alternatively, the Weeky calendar retains the same 12 uneven months for compatibility with the current calendar. However, it defines the fixed 52 weeks for any year. As a result, the dates of both calendars will be identical but different in the day of the week, which also eliminates all annual calendar renewals. The adoption is simple and at no cost. The Weeky calendar will be the most viable calendar upgrade waiting for your support and adoption.

Do you know how our calendar system inherited its messy history? Why didn't we improve or upgrade our calendar so far?

Weeky calendar defines same 52 weeks for any year (Innovative Calendar Upgrade)

In 1582, the Gregorian calendar was a slight reform of the Julian calendar by just skipping three leap days every 400 years, which fixed 20,871 weeks every 400 years.

Since the transition to the Gregorian calendar had to correct the drifted eleven days of the Julian calendar, Britain deleted eleven days in September 1752.

Weeky calendar defines same 52 weeks for any year (Innovative Calendar Upgrade)
14 Versions in

Gregorian calendar

28 Years per

Basic Calendar Cycle

400 Years per

Complete Calendar Cycle

20,871 Weeks per

Complete Calendar cycle

Perfect Simple Upgrade

Weeky Calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)

Same 52 Weeks for Any Calendar Year

The Weeky calendar is much more people-friendly and business-friendly. It defines the same 52 weeks for any calendar year and instantly eliminates all annual calendar renewals. The consistent 52 weeks are more practical for people and the best practice for any business. The 52 weeks are divisible into 13 quad-weeks (i.e., 13x4 weeks) for some particular usages. Because the same calendar applies to any year, no confusion and wasting will happen again. We can fix the dates for those holidays and observances without designated dates, such as Father's Day, Mother's Day, and Easter Day. Annual planning will be simplified and easily repeated onwards. Parents, students, and teachers will be glad to see the school terms and breaks falling on the sames dates every school year, so they can easily plan for school and term-break activities.

Quarterly 13 Weeks, Monday to Sunday

The Weeky calendar ensures all quarters with exactly 13 weeks from Monday to Sunday. Luckily, we can align the current 12 irregular months into four quarters and each quarter with 13 weeks. A Thursday is reserved for February 29 as a leap day to keep the first quarter having 91 days or 13 weeks. Since the third and the fourth quarter have 92 days which is 13 weeks plus one day, that can be resolved with an Extra Saturday and an Extra Sunday accordingly.

An Extra Saturday is on September 1 after the Saturday of August 31 to form a happy long weekend for people in the transition to a new season. It can also be a special worship day for any religion on the first day of a new season. December 31 is the final day of the year. It is logically set as an Extra Sunday after the Sunday of December 30 to have a happy long weekend at the end of the year. Again, the Extra Sunday can be a special worship day on the last day of the year.

Complete, Consistent, Versatile & Perennial

Besides incredible conveniences and money savings for all people and businesses, the standardized and consistent 52 weeks also makes business statistics, periodical analysis, and quarterly forecasts more relevant. Their usages are versatile. For example, the 9th Friday is March 1, and the 28th Friday is July 12. We can easily calculate their difference as 19 weeks. Since the Weeky calendar can seamlessly transform the current Gregorian calendar into a simple perennial system that effectively and efficiently serves our daily needs, the uneven months of the Gregorian calendar will no longer be trouble.

As the Weeky calendar is 100% compatible and in parallel with the Gregorian calendar, there will have no date conversion and no cost of adoption. Due to its subtle extensions with Extra Saturday and Extra Sunday, people will intuitively know how to use this simple and pragmatic calendar. The Weeky calendar is 100% free of adoption without transition. While people, schools, organizations, and countries can afford this seamless calendar upgrade for permanent benefits and savings, the Weeky calendar is the most viable and best-ever upgrade of the current confusing calendar that waits for your support and adoption.

Weeky calendar = First 8 months of 2024 + Last 4 months of 2029 = 100% Compatible and in Parallel with the Gregorian calenar = Seamless Adoption + Permanent Benefits

Using the Weeky calendar, we can also name a day by its week number and its day name of the week. E.g., the 4th Sunday is the same as January 28, the 6th Wednesday same as February 7, the 28th Friday same as July 12, etc. We call them Weeky Dates.



Calendar reform will affect the thousand-year history, cultures, traditions, and religious beliefs linked with the calendar. Luckily, the Weeky calendar treasures these linkages by ensuring 100% compatibility with the current calendar. Using the Weeky calendar, over 99.9% of people can say the start day of the week of each month and know the current week number of the year. It will be the most rational calendar upgrade. We should choose a versatile and hassle-free calendar as our civil calendar for daily use.

Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)
1 Calendar

Version

4 Years

Leap Cycle

13 Weeks

Every Quarter

52 Weeks

Every Year

Weeky calendar (view by Sunday first):
Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)
Weeky calendar (view by Monday first):
Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)
  • 1. Which year will have 53 weeks?
    The Weeky Calendar defines the same 52 weeks for any calendar year.
    2. Which year will have 53 Saturdays?
    All years have 53 Saturdays because there is an annual Extra Saturday on September 1.
    3. What astronomical reason causes the months with uneven days and without any alignment?
    Although no astronomical reason supports the months with uneven days, the Weeky calendar can well align the 12 irregular months into four quarters and each quarter with 13 weeks.
    4. Why cannot all quarters of the year start on the same day of the week?
    The Weeky calendar ensures all quarters consistently start on Monday.
    5. Why is the leap day assigned in February, the shortest month of the year?
    It was a historical issue. Even though February has 29 days in the leap year, it is still the shortest month. The Weeky calendar reserves a Thursday for February 29 as a leap Thursday. It ensures the first quarter has 91 days or 13 weeks. Eventually, the leap day should be on the final day of the year, which means December 31. Then, February 29 will be a regular Thursday, and December 31 will become a Leap Sunday in the leap year that occurs once at the end of the 4-year leap cycle. Such a simple switch of the leap day should be a perfect and seamless transition.
    6. Which year will start on Monday?
    All years start on Monday.
    7. Which year will have three Fridays on the 13th day?
    No Friday will fall on the 13th day because no month will start on Sunday.
    8. When will your birthday fall on the same day of the week you were born?
    Every birthday will fall on the same day of the week we were born.
    9. Do you remember the school-term dates of any school year?
    In the Weeky calendar, schools can rely on a repeatable and reusable school calendar without any annual renewal. Teachers, students, and parents can easily remember and follow the consistent school calendar of any school year. That will also be convenient for arranging annual activities, such as term-break special studies, multiple weeks of sports drills, overseas travels, etc.
    10.  Do you know whether the average 365.2425 days in a year is accurate?
    Yes, it is still accurate. The Weeky calendar currently follows the same rules of leap years as the Gregorian calendar. However, unlike the Gregorian calendar, the Weeky calendar allows a skip of the leap day in any leap year as a calibration according to the astronomical observances of the Earth’s Orbit.


Versatile

The Weeky calendar can name a day in multiple ways to satisfy various usages and purposes.
That will be much more useful and flexible than the current complicated and stiff calendar system. Here are some examples:
Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)
"Weeky Date" specifies the weekday name (Monday to Sunday) plus the week number in the year (1 to 52).
The Weeky Number format specifies the week number (01 to 52) and the weekday number (1 to 7).
The Quad-week format specifies the ordinal of the quad-week (01 to 13) and the day of the quad-week (01 to 28).
The plus symbol "+" represents "Extra"; either Extra Saturday or Extra Sunday.

The Final State

The Weeky calendar has three special days well-prepared for the seamless switch of the leap day.
As a result, it matches the Earth's elliptical orbit that the first half-year is shorter by 1.25 days than the second half-year.
It means the first half-year takes around 182 days to orbit, and the second half-year takes about 183.25 days to complete the orbit.

February 29

February 29 is currently a Leap Thursday. It will eventually be a regular Thursday. Then the first quarter will have 13 full weeks.

September 1

September 1 is an annual Extra Saturday. It is the first day of a new season and will not be affected by the switch of the leap day.

December 31

December 31 is currently an Extra Sunday. It will finally be a Leap Sunday that will occur once at the end of the 4-year leap cycle.

* The leap day on December 31 will also reduce the 14 versions of the Gregorian calendar to just seven. It is equivalent to half the complexity.

  • There is a suggestion of extending February to 30 days for keeping months with either 30 or 31 days, but we must remove one date in a year. It will be arguable why and when that change is justifiable. Nevertheless, the Weeky calendar is so flexible that it may remove August 31 for February 30, and any missing August 31 will be equivalent to August 30. As a result, the 1st, 3rd, 5th, 7th, and 10th months will be long months having 31 days. Other months will have 30 days. December 31 will still be Leap Sunday in the leap year. Effectively, the Weeky calendar can accomplish this change with the minimum impact and seamless transition.

    If February 30 replaces August 31, March 1 will become an annual Extra Friday after the Friday of February 30, and September 1 will become a regular Saturday. Certainly, Extra Friday shall be a public holiday. The resulting months will be as follows:

    Month123456789101112
    Days313031303130313030313030/31

    Would any benefits be justifiable from removing August 31 for February 30?

    OptionsFeb 29Feb 30Mar 1Aug 31Sep 1Dec 31
    1. No
    February 30
    ThursdayNilFridaySaturdayExtra SaturdayLeap Sunday
    in the leap year
    2. Remove
    August 31
    ThursdayFridayExtra FridayNilSaturdayLeap Sunday
    in the leap year
Weeky calendar (Compact View with the same 52 Weeks for any year)
Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)

Frequently Asked Questions

  • Yes, they should do it because they all affirm the troubles of the current calendar but no solution of how to improve it. The United Nations is still obligated to discuss and accept any viable proposal for calendar reform. In 1955, the United Nations almost approved the proposed World Calendar. But a veto from the government of the United States postponed the issue. In 1963, the Second Ecumenical Council of the Vatican declared that the Vatican did not oppose efforts designed to introduce a calendar applicable to any year into civil society.

    The latest adoption of the Gregorian calendar was in Saudi Arabia in October 2016. The approach to calendar reform is still being explored and discussed. There are still several active proposals for calendar reform. Although any calendar reform will cause chaos and the enormous transition cost will be unaffordable, the Weeky calendar won't have such issues. It is 100% compatible and in parallel with the Gregorian calendar. It will be the only viable calendar upgrade that seamlessly transforms the current calendar into a perennial calendar system.

  • Birthday Leave is a common practice in many companies and countries. People are entitled to paid leaves on their birthdays if the day is a working day. That will make sure all people may equally have a day off on their birthdays. The policy can even extend to the spouse. That ensures all days are good birthdays. It is also common for people to celebrate their birthday together on the weekend. By the way, the superstition of "Friday on the 13th day" will never exist in the Weeky calendar. All days in the Weeky calendar are good birthdays.

  • The Weeky calendar follows the International Standard of ISO-8601 that Monday is the first day of the week. The Gregorian calendar defined Monday as the first day of its 400-year cycle. Thus, the first day of 2001 was on Monday. Some countries, such as the United States, South America, and China, present the week on Sunday first. They practically treat every week starting from Monday for work and take rest on Sunday. The Weeky calendar can show the weeks with either Sunday or Monday first.

    Countries can name the days of the week according to their cultures or religions, as long as people work on the first five days and worship or rest on the last two days of the week. Thus, Islam and Muslim-majority countries can name the days of the week accordingly so they can pray on the sixth and the seventh days of the week. That can align with the working days of other countries and the international financial markets.

  • The Weeky calendar is compatible with the current calendar using the same month structure. While we can use both calendar systems in parallel, it is easy to adopt the Weeky calendar at any time. For seamless adoption without confusing the days of the week, any years that start on Monday can be considered, such as the common years 2029, 2035, 2046, etc., and the leap years of 2024, 2052, etc. People will find almost no significant difference while adopting the Weeky calendar. Then, no further calendar renewal will happen again. People and businesses will significantly benefit from the simple and practical Weeky calendar.

  • Weeky Date is an outstanding feature of the Weeky calendar that labels a day with the weekday name (Monday to Sunday) plus the week number (1 to 52) shown in superscript. It is simple to add the new "Weeky Date" in any software program. This webpage also contains the Javascript function of "Weeky Date" with the source code available via "DevTools" of any internet browser. Here is an example of "WeekyDate" as an Excel VBA function usable in an Excel formula, such as "=WeekyDate(TODAY())" will give "":

    Public Function WeekyDate(inDate As Date) As String
        Dim supNumber As Variant: Dim daysAhead As Variant: Dim weeksAhead As Variant
        'Using the Superscripted numbers in the Unicode
        supNumber = Array(8304, 185, 178, 179, 8308, 8309, 8310, 8311, 8312, 8313)
        daysAhead = Array(0, 0, 3, 4, 0, 2, 5, 0, 3, 5, 0, 3, 5)
        weeksAhead = Array(0, 1, 5, 9, 14, 18, 22, 27, 31, 35, 40, 44, 48)
        Dim mth As Integer: mth = VBA.Month(inDate)
        Dim day As Integer: day = VBA.day(inDate)
        Dim dwi As Integer: dwi = (daysAhead(mth) + day) Mod 7
        If dwi = 0 Or (mth = 12 And day = 31) Then dwi = 7
        With WorksheetFunction
            Dim dow As String
            dow = .Text(DateSerial(year:=2001, Month:=1, day:=dwi), "ddd")
            If ((mth = 9 And day = 1) Or (mth = 12 And day = 31)) Then
                dow = dow + "+"
            Else
                Dim wks As Integer
                wks = (daysAhead(mth) + day - dwi) / 7 + weeksAhead(mth)
                If wks < 10 Then
                    dow = dow + .Unichar(supNumber(wks))
                Else
                    dow = dow + .Unichar(supNumber(Int(wks / 10)))
                    dow = dow + .Unichar(supNumber(wks Mod 10))
                End If
            End If
        End With
        WeekyDate = dow
    End Function
    
  • In 2018, when I taught my eight-year-old son how to read the calendar in Auckland, New Zealand, he intuitively asked me several simple questions. Why is February the shortest month? Why is August a long month? He also asked why we need to renew the calendar annually and whether the months relate to any astronomical observances. Ironically, no textbooks answered those questions. I started researching calendar systems and found that the Gregorian calendar was not designed to follow astronomical observances but was somehow arbitrary. The annual calendar renewal is the worse and most debatable calendar design, which is annoying, inefficient, and redundant. It confuses our memory, wastes our continuous effort, and spends resources dealing with the annual calendar variations.

    However, we seem to have no solution and just dogmatically follow the selected Gregorian calendar. There were trials of using different calendar systems and many proposals for calendar reform. All research and studies of calendars suggested the abortion of the annual calendar renewal and adopting a perennial calendar system. However, none were accepted because those proposals introduced different structures for months that could seriously affect all documents and computer systems. The change will be chaos. The enormous transition cost will be unaffordable.

    The Gregorian calendar changes every year because it must align 365 or 366 days into the weeks with strict seven days, in which the year can have 52 or 53 weeks. If every date in a year has its fixed day of the week, the calendar will no longer have any annual renewal. Thus, the Weeky calendar is compatible with the Gregorian calendar by consistently arranging all dates of a year into 52 weeks. Initially, we used a prototype named as NexCalendar to collect feedback and opinions. Having taken four years of rigorous studies verified by thousands of people of different ages, religions, and backgrounds, we published the Weeky calendar in July 2022. It will be the most viable calendar upgrade. Any person, business, organization, and country can afford such a seamless and costless calendar upgrade. The advantages and benefits are permanent and forever.

  • The Weeky calendar is compatible with the Gregorian calendar. Only the weeks are standardized and subtly extended by an Extra Saturday and an Extra Sunday to ensure every quarter with consistent 13 weeks. The Weeky calendar is much more complete and structured in perfect harmony. The subtle changes introduce almost no impact on the thousand-year cultures, traditions, and religious beliefs linked with the calendar. Religions may relevantly arrange those extra days as extra worship days.

    Nowadays, we know that 29.53058 days is the mean of the lunar months in the lunar cycle, and 365.24219 days is the mean of the solar years. The alignment of the lunar cycle and the solar cycle will take around 19 years. God (the creator of the Universe) did not apply the whole number of seven to them. None of those numbers are multiples of seven. Since the 7-day week has been our accustomed pattern, we still can apply subtle enhancements to align with the astronomical facts. Equivalently, months can never have equal days because the days of a year can never be divisible by 12. The Weeky calendar has already taken the best compliance to ensure weeks with seven days. It just has the harmonic extensions of Extra Saturday and Extra Sunday. In the final state, the Extra Sunday will be a Leap Sunday occurring once at the end of the 4-year leap cycle.

    Early Romans used eight-day weeks in civil practice for centuries before Emperor Constantine established the seven-day week in 321 CE. The mix of some 8-day weeks and 7-day weeks existed in the age of Jesus Christ. The Bible did not argue there were some eight-day weeks. It mentioned some eight-day events and some activities on the eighth day. The Weeky calendar rigorously ensures the same 52 weeks for any Gregorian calendar year, which permanently benefits all people, businesses, and religions. The Extra Saturday and the Extra Sunday (finally a Leap Sunday) can be extended worship days that present "higher respect" to any religion than keeping the confusing annual calendar renewal and its clunky calendar variations.


We deserve a rational calendar.

"Our World is changing. We rethink and believe in a better future." We can fix the old & odd calendar system. The Weeky calendar is the most rational and viable upgrade, which we can adopt at any time and work in parallel with the Gregorian calendar. However, it is challenging to disseminate this proposal to all people. We sincerely need your involvement, support, and sponsorship for our advocacy campaigns.

Weeky calendar (Simple Matrix View)
Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)
Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade) Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)

Your Support

During the discussion about the Weeky calendar, we find that people know very little about the current calendar even though it is our daily system. Since people just dogmatically follow and use the calendar, they certainly may not justify why we upgrade it. Once people know its messy design, they will probably question why we keep using such a weird calendar system without any revision.

Please discuss the troubles of the current calendar and its negative impact on our daily life with your friends, families, relatives, neighbors, classmates, colleagues, and anyone. Please mention the Weeky calendar can work in parallel with the current calendar. It is the only viable calendar upgrade that can seamlessly turn the calendar into a much more practical perennial calendar system. The Weeky calendar is simple, familiar, pragmatic, versatile, memory-friendly, people-friendly, business-friendly, and money-saving that benefits all people and businesses.

Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade) Weeky calendar defines the same 52 weeks for any Gregorian calendar year (Innovative Calendar Upgrade)

Your Sponsor

There are unlimited ways to support and sponsor our advocacy campaigns. You may kindly initiate more campaigns and advocacy activities or by sponsorship. You may offer some souvenirs, such as T-shirts or cup mugs. With the Weeky calendar printed on the T-shirts or cup mugs, they will be permanently usable as the Weeky calendar is applicable to any calendar year.

We won't have enough resources to arrange advocacy campaigns in all countries. Your contribution is necessary. Besides using affordable internet media, we hope to disseminate and discuss the Weeky calendar in schools, universities, associations, organizations, etc. Eventually, we wish some or all countries to adopt the Weeky calendar as their civil calendar. Please let us know if you may help us to realize this mission.