The Gaian Calendar

Why this calendar?

The Gaian Calendar takes the practical ISO week system and adds a ceremonial layer: fixed weekdays, reliable scheduling, and a scripture-aligned yearly cycle.

It is designed so that computers (and humans) can compute dates easily, while the religion can place holidays on predictable Sabbaths.

Year numbering (Gaian Era)

Gaian years are numbered as: Gaian Era year = ISO week-year + 10,000. This is a Holocene-style framing that keeps recorded human history in positive year numbers.

A larger mythic framing sometimes describes the present as 13.8 billion + 12,026 years since cosmic origin; in practice we clip off the “billions” and use 12026 GE.

Structure

• 13 months of exactly 28 days (4 weeks) each = 364 days
• An intercalary Horus week (7 days) occurs only in ISO week-53 years
• The year starts on a Monday and ends on a Sunday
• Every date always falls on the same weekday

ISO week alignment

Weeks are ISO weeks: week 1 is the week containing January 4 (equivalently: the week with the first Thursday).

Gaian New Year (Sagittarius 1) is the Monday of ISO week 1.

Sabbaths and holidays

In this system, Friday, Saturday, and Sunday form the three Sabbaths. Lifeist holidays are preferentially placed on these days for practical participation.

We include variants of many inherited holidays. Easter is treated as an archetypal movable feast: we ensure celebrations exist for every weekday Easter can fall on; similarly for Pentecost. For fixed-date traditions, we use the closest statistical weekday. We incorporate Hebrew-calendar variants, but do not attempt to model Islamic or Indian calendars (because their weekdays are less predictable).

Scripture alignment

Each day of the Gaian year corresponds to a chapter of the scripture cycle (1–364). The calendar is also structured like “week 1 / week 2 / week 3 / week 4” months used in modern business scheduling.

Subscribe to the Gaian Calendar

Add Gaian calendar events — including daily readings, holidays, and the Christian season (Lent, Easter, Pentecost) — directly to your calendar app.

• Current calendar — daily events with descriptions, holidays, and season markers for ±2 years. Rebuilds on every site update.
• Extended holidays — fixed and moveable holidays only, covering Gaian years 12000–12040 (2000–2040 CE).

To subscribe in Google Calendar: Other calendars → + → From URL → paste the link above.
In Apple Calendar: File → New Calendar Subscription → paste the link.

Sacred Calendar — Holidays & Observances

Because the Gaian calendar is perpetual, every holiday falls on the same weekday every year. Dates marked * indicate the range of possible dates for moveable feasts (Easter, Pentecost).

* Easter can fall on any of five dates (Aquarius 28 through Pisces 28). Pentecost/Shavuot falls 49 days after Easter, giving five possible dates (Aries 21 through Taurus 21); Taurus 7 is canonical. Two Halloweens and two US Thanksgivings reflect the spread across adjacent days.