Global Calendar Research Paper

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Geographic calendar

The geographic calendar or geocalendar is an Earth based lunisolar calendar with decimal time.
1. Notation

Its units are the year, month, day, centiday, and dimiday. A date is represented by a serie of two digits for each unit separated by colons:

YY:MM:DD:CC:BB (LAT, LON)

Every date should be accompanied by a set of geographic coordinates.
2. Example

14:03:03:71:59 (48.5136, -2.7653)

This example can be read as 14 years, 3 months, 3 days, 71 centidays, and 54 dimidays since the beginning of this calendar.

The notation can be split in two parts: this first one representing the date of a day, 14:03:03 in the example, and the second one, 71:51, the time.
3. Lunisolar calendar

This section describes the units representing …show more content…

The Earth’s axe of rotation is tilted, which means that during half of the year the northern hemisphere will progressively get longer nights than the southern hemisphere, with more dramatical changes at higher latitudes near the north pole where the Sun never rise in the sky for a few months.

At temperate latitudes, the Sun reaches the highest elevation in the sky at the summer solstice and the lowest at the winter solstice. The day of the summer solstice is the longest day of the year, and the day of the winter solstice is the shortest day.

This variation in sunlight give the Earth its seasons. This cycle is the reason why the geographic calendar is a lunisolar calendar instead of a simpler lunar calendar.

The number of months elapsed since the beginning of the calendar year is tracked by a counter reset to zero every new year.

A new calendar year begins on the day of the first new moon which fall on or after the day of the winter solstice in the northern hemisphere.

There is a symmetry between the day starting at midnight and the year beginning on the darkest night of the new moon after the longest night of the winter solstice. Though this is true only for the northern hemisphere as it is summer during this time in the southern …show more content…

For example it will show 50 at local noon because it occurs 50 centidays or half a day after midnight.
4.2. Dimiday

Shorter units of time would be useful for more precise measurements so we can divide the day again to get a hundredth of a centiday (8.64 seconds) or a even a thousandth (0.864 seconds).

Those short durations can be associated to physiological phenomenons of adult humans. The former is slightly lower than the normal respiration rate at rest, so this unit of time could be called a breath. And the later, in the range of a normal heart at rest, could be called a beat.

The former is preferred to keep using two digits per units and because the later would be competing with the second used in the universal metric system.

The primary name of this unit is the dimiday, an obsolete metric prefix equivalent to decimilliday (or centicentiday). It is known as “fen” in some Chinese calendars.
4.3. Epoch

The day 00:00:00 of this calendar corresponds to 1970-01-01 of the Gregorian calendar. The beginning of this day at midnight along the Greenwich meridian is known as the Unix epoch, it is used by modern computers to mark the passage of time by counting the number of seconds elapsed since

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