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.