Quepennura Leap Week Calendar

The Solar Year in the Far Future is NOT Taken into Consideration in Most Calendars.

The solar year is getting shorter and shorter, so we will definitely need to revise the calendar someday.

However, if only the solar year at present or in the near future is taken into consideration, the revision to the calendar will end up being made earlier.

Therefore, we should use the calendar with the averaged year length corresponding to the solar year in the far future.

The Day of the Week for Each Date Changes Every Year in Most Calendars.

In most calendars including Gregorian Calendar, the number of the days in a year is NOT divided by 7, and this causes the problem that The day of the week for each date changes every year.

Some Calendars Focus on Week Too Much.

Such calendars have the following problems.

1. If the calendar has months, the number of each month is NOT EQUAL often.

2. If the calendar has leap weeks, it will be IMPOSSIBLE to celebrate the birthday or something like that, every year, of someone's who was born in a leap week.

Some Calendars Focus on Month Too Much.

In order to equalize the number of the days of each month as much as possible, if the following are allowed:

1. At least one day is NEITHER Monday, Tuesday, Wednesday, Thursday, Friday, Saturday nor Sunday.

2. The same day is REPEATED in the same week. (e.g. Sunday comes just after Sunday.)

it causes the following problems:

1. There will be NO CONTINUITY between the historical days of the week and those in the calendar.

2. If all calendars have adopted the same week system except the calendar, there will be a day-of-the-week-related CONTRADICTION between the calendar and the others.