TheAbysmal Calendar

theAbysmal Calendar .is a proposed calendar system with several functions: it provides a numeric global calendar system to mediate between other calendar systems; it organizes the year in a variety of regular measures; it is synchronized with the natural time as defined by the day, the moon, the seasons.

Cardinal Numbering

Every measure of theAbysmal Calendar begins with 0, and counts time only after it has completely elapsed. This is an extension of the way we count seconds, minutes, hours to measures of the days, weeks, months, years, and so on.

Epoch & Eras

theAbysmal Epoch began with the New Moon prior to the Northern Solstice in 1492 CE - May 26th on the Julian Calendar.

theAbysmal Calendar measures two Eras, a short one of 260 years and a long one of 5,200 years.

Era 0 began May 26th, 1492 CE (Julian)

Era 1 began Jun 11th, 1752 CE (Gregorian)

Era 2 began Jun 19th, 2012 CE (Gregorian)

Observational Lunar Calendar

This function of the calendar counts every second, day, week, moon, and year without further correlating any of them. This is a linear count and provides a means of translating dates between solar and lunar calendars. While these numbers ultimately begin with the Epoch, following by Era is more pragmatic.

Era 2 began with:

• second 00 = midnight UTC Jun 19th 2012 CE at 180 degrees longitude (IDL)
• Day 0 = Jun 19th 2012 CE
• Week 0 = Friday, Jun 22nd 2012 CE
• Lunar Month 0 = Jun 19th to Jul 18th 2012 CE
• Year 0 = Jun 19th 2012 to Jun 7th 2013 CE

13~Month Calendar

theAbysmal Calendar has a rules-based annual calendar, which divides the year into 13 months with 1 day outside of any month, which falls on Dec 21st at the Southern Solstice. This creates a symmetrical structure aligned with the seasons of the year, as well as harmonizing the 7-day week with the month, the quarter, the semester, and the year.

As the calendar is strictly numeric, anyone is free to name the days, weeks, months, years, etc. however they choose.

Structure of the Year

365 = 364 + 1 = 7 x 52 + 1 = 7 x 4 x 13 + 1

Defining the year in this manner allows us to make regular divisions.

• 52 weeks + 1 day = 1 year
• 26 weeks = 1 semester
• 13 weeks = 1 quarter
• 4 weeks = 1 month
• 2 weeks = 1 fortnight

Each of these measures fits evenly into the year, + 1 day.

This also makes each of these a regular measure, which is a significant drawback of the Gregorian.

• 1 week = 7 days
• 1 fortnight = 14 days
• 1 month = 28 days (4 weeks)
• 1 quarter = 91 days (13 weeks)
• 1 semester = 182 days (26 weeks)
• 1 year = 364 days (52 weeks) + 1 day

Days of the Week

theAbysmal Calendar has no authority over the Weekdays however, these two daykeeping systems synchronize together with an underlying 28-year pattern.

theAbysmal New Year 0 -(Dec 21 2012) fell on a Friday, making Month 0 Day 0 a Saturday. For the duration of year 0, every fortnight, month, quarter, and both semesters began on Saturday. Year 1 began on Sunday, and so every fortnight, month, quarter, semester began on Sunday, and so on. Year 2 began on Monday. The following year, being a leap year, is divided in two halves: the first half began on Tuesday, the second half on Wednesday. Year 4 began on Thursday, and so on. This creates a 28-year cycle.

Leap Year Rule

365 + 1/4 - 1/128

A Leap Day is observed on Jun 21 in a year following Feb 29 (Gregorian). There is an exception every 128 years where no Leap Day is observed, however the timing for this hasn't been decided. This will put theAbysmal Calendar and the Gregorian out of synch in 2100 CE.

An alternative is to synchronize with the Persian calendar rather than the Gregorian. Every quarter begins on a Solstice or Equinox, and their leap year rule is equivalent to theAbysmal's, however, it's smoother.

365 + 8/33

For the moment, this is undefined.

Notation

Numbering begins with 0, largest to smallest left to right, and punctuates notation as follows:

• dates are separated by tilda (~)
• times are separated by colon (:)
• anything less than a second is a decimal (.)

Example:

4~7~0 22:34:59.22

Year 4 Month 7 Day 0 10:34PM and 59.22 seconds.

Other Divisions

theAbysmal Calendar is an ongoing experiment in devising novel calendar systems. The days of the year are further divided into other measures:

364 + 1 day = 7 months of 52 days

363 + 2 days = 11 months of 33 days

361 + 4 days = 19 months of 19 days

360 + 5 days really opens up the possibilities

• 6 months of 60 days
• 8 months of 45 days
• 9 months of 40 days
• 10 months of 36 days
• 12 months of 30 days
• 15 months of 24 days
• 18 months of 20 days
• 20 months of 18 days
• 24 months of 15 days

These months are each organized by market weeks of various length.

365 = 5-day week x 73

364 = 4-day x 91, 7-day x 52, 13-day x 28

363 = 3-day x 121, 11-day x 33

361 = 19-day x 19

360 = 3-day x 120, 4-day x 90, 5-day x 72, 6-day x 60, 8-day x 45, 9-day x 40, 10-day x 36, 12-day x 30

See also

• Calendar reform
• Lunisolar calendar
• Perpetual calendar
• Maya calendar

External links

• theAbysmal Calendar