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Calendar
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The Aryezi Calendars |
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The Aryezi calendar is a term that actually refers to two distinct calendars, both associated with Aryez. One is based on the Earth's rotation and is used in the real and micronational worlds as a time keeper. The other is a 400.05 day calendar based on a fantasy world where Aryez was supposed to be based. Calendar Based on Earth's Rotation: Introduction and Derivation The Aryezi calendar for Earth was devised by me a couple of years ago and is currently being perfected by me. It differs from
the current calendars in that it starts from a different point, and the months are not of unequal length. It should be noted
that an average Earth year is 365.242199 days, so it is actually inaccurate to state that the Earth year is 365.25 days long.
This inaccuracy led to the replacement of the Julian calendar by the Gregorian calendar. As Aryez keeps track of time using
the sun, only purely solar calendars could have been used as models. Therefore, the Hindu, Hebrew, Islamic, and Chinese calendars
were useless for me, as they ended up having either 354 or 365 days, both of which are inaccurate. Seemingly, the most accurate
solar calendar used today is the Iranian calendar which is accurate to 1 day in 150,000 years as compared to the Gregorian,
which is one day in 20,000 years. The Iranian calendar however accounts for this exactness through a rather complicated process
that I do not yet understand; most of the time leap years are every 4 years but sometimes they are every 5, 6, or 7 years.
How this is determined still eludes my brain. As it is impossible to create an exact calendar because the year is a fraction
of a number, it is necessary to add extra days when these fractions add up to whole numbers. Anyhow, I rounded the year’s
length to 365.2422. Using not very complex calculations, I’ve determined that if one assumes the year is 365 days, they
will have 1211 extra days over a 5,000 year period, and 2422 after 10,000 years. However, if we use the Julian method of adding
an extra day every 4 years, we would have 2500 extra days over a 10,000 period, 78 more days than needed. Therefore, we cannot
have a leap year every four years. The question is: where to loose those 78 days? We can drop them all at once every 10,000
years, but most people would prefer something more subtle. Here is what I came up with: let us start with 2500 days; our goal
is to reach 2422 days. Step one is a Gregorian invention: even though they are divisible by four, “hundred” years
are no leap years unless they are divisible by 400. This eliminated 75 days over a 10,000 year period, so we’re already
down to 3 days. However, to fix these 3 days, there must be an exception to this rule: years divisible by 400 and 4000 (4000,
8000) are not leap years despite being divisible by 400. Now, we’re off by 1 day. One day in 10,000 years. To fix this,
I’ve added one more innovation. Despite being divisible by 400, and not divisible by 4,000, any number divisible by
10,000 will not be a leap year. This might run into a problem because 20,000 is both divisible by 4,000 and 10,000 (so are
we loosing one day where we should have lost 2?), but so far I have not seen any. So I’m pretty sure this calendar is
accurate to one day within 20,000 years; 20,000 years from now is a long enough time for people to fix any errors. Therefore,
these are the basic rules for leap years, which is important for precision: Calendar Based on Earth's Rotation: How it Works The Aryezi calendar starts on a date equal to March 21 in our calendar (spring solstice). The year 0 in this calendar is 7988
B.C. (starting March 21), so the year 10,000 in this calendar will be roughly equal to 2012 (starting March 21). I picked
a rather random date, near the dawn of civilization, and so in a way that the year 2012 would equal 10,000. 2012 is seen by
Aryezin as the date of some great happening. The Aryezi calendar is divided into 10 months of 36 days each, with a 5 day period
between the last and first month, to make a year 365 days. Leap years are added (as prescribed above) to the end of the 5
day periods (therefore, sometimes these periods are 6 days). The following are the months, their names (months in Aryez have
no names, they are numbered), and their equivalent in Gregorian dates: Calendar Based on the Imaginary Rotation of the Hypothetical Planet Aryez is On From the Orbital and Revolutionary Periods of Aryez's imaginary planet, the Calendar of Aryez is derived.This planet takes
400.05 days to orbit its sun.
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Welcome to Aryez! |