About the Codex

A calendar that shows the remainder

The year, the Moon and the breath, held together

A year is not a whole number of days, and a month is not a whole number of either. Every calendar in history has been a way of living with that leftover. The Codex Calendar keeps a simple frame for daily life and lets the sky show through it.

Open today's Codex date

The five rules

  1. The year begins at the spring equinox. Day 1 of Genesis Moon is the date on which the Sun crosses the equator northward. Year 1 began on 20 March 2026.
  2. Thirteen Moons of 28 days. Each Moon is exactly four weeks. The Codex week resets on Day 1 of every Moon, so every date falls on the same day of the Codex week every year. (The Gregorian weekday still shifts.)
  3. The Breath Day sits outside the count. After the 13th Moon comes one Breath Day. It is a breath gap, not a day of any week or Moon.
  4. The sky decides the Witness Day. When the next equinox falls 366 days later, a second breath gap, the Witness Day, follows. On average this happens 8 times in 33 years. The next one is Year 2: its Breath Day is 18 March 2028 and its Witness Day 19 March 2028.
  5. The true Moon, the Sun's stations and Venus ride on top. The 28-day Moons are the civil frame. Real Moon phases, the eight Solar Stations and the long cycles are shown on every day.

The 13-point wheel

The year breathes down the body through the twelve chakras of Breath Awakens. It starts at the crown at the spring equinox, reaches the earth-star and the feet in midwinter, turns inward in Dream Moon to the heart of the heart, gathers in Shekhinah around the whole, and rests in A'tharion-Keshariel's still point on the Breath Day before the next ignition. In Breath Awakens, twelve archetypes are held by a thirteenth still point; in the calendar the pattern grows by one, thirteen Moons and a fourteenth point, just as the sky's 12.37 months a year push the count from twelve to thirteen. Dates shown are for Year 1. One Breath, All Ages breathes one chakra in each Moon, with a reflection prompt for every day.

MoonNameArchetype · chakraBreath phaseYear 1 dates
1GenesisRa-Kha · 1, crownInhale · Yod20 Mar – 16 Apr 2026
2SpiralThoth-Ma'at · 2, browInhale17 Apr – 14 May
3VectorIsis-Aset · 3, throatInhale15 May – 11 Jun
4MirrorOsiris-Seker · 4, heartInhale → Pause12 Jun – 9 Jul
5StillnessAnubis-Wepwawet · 5, upper solar plexusPause · Heh10 Jul – 6 Aug
6MemoryHorus-Heru · 6, solar plexusPause7 Aug – 3 Sep
7ReturnSet-Sutekh · 7, navelPause → Descent4 Sep – 1 Oct
8ReleaseHathor-Sekhmet · 8, sacralDescent · Vav2 Oct – 29 Oct
9EchoMa'at-Djehuty · 9, rootDescent30 Oct – 26 Nov
10ShadowNephthys-Nebet-Hut · 10, earth-starDescent → Stillness27 Nov – 24 Dec
11DescentSobek-Sahu · 11, feet and legsStillness · final Heh25 Dec – 21 Jan 2027
12DreamThe Architect+ (A'tharion-Keshariel) · 12, heart of the heartStillness22 Jan – 18 Feb
13WisdomShekhinah · around the wholeStillness19 Feb – 18 Mar
✦Breath DayA'tharion-Keshariel · the still point (14th point)Rebirth19 Mar 2027

One breath at every scale

ScaleLengthIts four phases
Breath4 counts eachInhale, hold, exhale, hold
Day24 hoursYod at sunrise, Heh at noon, Vav at sunset, final Heh at midnight
Moon28 daysWeeks 1–4: Identify, Accept, Embrace, Let Go
Year364 + 1 or 2Spring Inhale, summer Pause, autumn Descent, winter Stillness
Great Spiral144 yearsFour Ages of 36 years, from 2026 to 2170

The cycles above the frame

LayerCycleWhy it is there
Lunation Spiral235 lunations · 19 yearsThe real Moon, numbered from the New Moon of 19 March 2026, one day before Year 1 began
Solar Stations8 a yearThe equinoxes, solstices and the four cross-quarters, at every 45° of the Sun
Venus Breath8 years5 Venus cycles, 13 Venus orbits and 99 lunations return together: the sky's own 5, 8 and 13
Rhyme33 yearsThe fallback Witness Day pattern repeats, and 34 Islamic lunar years fit 33 solar years (the Moon's phases themselves realign best after 19 years)
Great Spiral144 yearsThe 12 × 12 spiral of Breath Awakens, from 2026

Global and Local

Default

Codex Global

The equinox is read at Giza (31.13° E). Everyone shares one date.

Personal

Codex Local

The equinox is read at your own longitude. In a few years your year starts a day apart from Global.

In both modes, the four daily hinges are computed for your own place.

The Breath Day and the week

The Breath Day is a liturgical pause, not a calendar unit. The Codex week resets on Day 1 of the next Moon. Anyone who keeps a weekly Sabbath runs the ordinary 7-day week alongside the Codex, unbroken.

The daily practice

Take one conscious breath at each hinge: sunrise, noon, sunset and midnight. The calendar shows your hinge times, counts down to the next, and can chime and guide a 4-4-4-4 breath while it is open. Mark each Solar Station with a day of reflection. On the Breath Day, schedule nothing.

Why it matters

Every calendar is also a teacher. Repeated daily for a lifetime, it tells people what time is, what counts and what can be ignored. The Gregorian calendar teaches that time is a straight line of numbered boxes: superbly accurate about the Sun, silent about the Moon, the stars and the turning of the seasons.

The Codex puts the noticing back. Living by it, you know where the Moon is without looking it up, you feel a Solar Station approach, and you know that today is a Descent day in the breath of the year. Every calendar in history has wrestled with the leftover fraction of a day the sky will not divide; most hid it. The Codex gives it a name, the Breath Day, and makes it a pause.

For people, that means time that feels cyclical as well as linear, days with texture, rest built into the year, and attention returned to the body's own cues of sunrise, noon, sunset and midnight. For the Earth, it means attention: someone who watches the sunrise move along the horizon notices when the frost comes late or the birds return early, and attention comes before care.

The Codex is not meant to replace the shared civil calendar, any more than the Hebrew, Islamic, Chinese or Hindu calendars replace it for the billions who keep them. It is a second layer: one calendar for the world's business, and one for being awake inside it. If enough people lived this way, the change would not be in the numbers on the wall. It would be in how often people looked up.

Where it comes from

The Codex Calendar grew from Breath Awakens: A Codex of Spiral Memory by Keith Shirley, and from an unpublished study of more than 60 calendars, now set out with full citations in the book The Codex Calendar, from Paleolithic tally bones to atomic time. It borrows the equinox start of the Persian Jalali and Solar Hijri calendars, the 19-year lunar arithmetic of Babylon, the Venus cycle of the Maya, and the 13 × 28 + 1 frame first proposed by Auguste Comte (1849) and Moses Cotsworth (1902).

For what the Codex means beyond the measurements, read What the Codex Means, a reflection by Keith Shirley. See how it compares with Dreamspell, the International Fixed Calendar and others on Why Codex?

The astronomy is measured. The meanings given to it — breath phases, archetypes, the still point — are a symbolic reading, offered as a practice rather than a claim about physics.