The human calendar is a reform proposal of the calendar that we all use.
It’s a lunisolar calendar which starts at -10.000 BC (Holocene Era). The beginning of this era coincides roughly with the beginning of the sedentarization of Man, and thus with the beginning of the first civilizations. Starting the calendar at the beginning of the Holocene era makes it easier to include a year 0 and to date more easily what happened before Jesus Christ (whose actual date of birth is not known), while giving it a culturally neutral character. In concrete terms, the year 2012 of the Gregorian calendar would correspond to the year 12012 of the human calendar.
It contains 12 months of 30 or 31 days.
A 30-day months’ system keeps a duration close to that of a lunar period, and it allows to divide them in 5 weeks of 6 days. It is to keep this precise number of weeks that a seventh day is added to the last week of the 31-day months. This also makes it possible to systematically match the same date with the same day of the week (the first day of each month will always be a Monday, for example).
Every 4 years, a leap year adds a 31th day at the first month of the year, with only one exception every 128 years, in such a way to maintain an average of 365,2422 days (the time the Earth takes to go around the sun).
The beginning of the year coincides with the spring equinox (around March 20) and every season matches to a quarter (from the first day of the first month until the last day of the third month).
mone = month, moon
die = day (24-hour period)
este = season
- sweliseyste (insolation season) = spring
- warmeste (hot season) = summer
- tumiseyste (darkening season) = autumn
- frideste (cold season) = winter