Otan calendar
The Otan calendar is made up of 12 months, each consisting of 30 days. The final month, Jeltoskan is followed by five or six holy days, described by different names through Otan. They are known as the Yule Season in countries predominantly inhabited by Woden worshippers and the Flower Festival by worshippers of Aspan, with many other analogous holidays depending on the region's religion. The total of 365 or 355 days makes up an Otan year.
Clerics from many nations and faiths convene to determine whether the holy days will last six or seven days, sometimes adding an additional leap day to keep the year aligned with the seasons. Leap days are considered by most cultures to be exceptionally auspicious and holy.
Each of the various regions, religions, cultures, and tribes on Otan can be found marking additional holy days which do not occur at the end of the year. These will be
The Otan Year
| Winter |
 Kantar |
 Akpan |
 Nawriz |
|---|---|---|---|
| Spring |
 Sawir |
 Mamir |
 Mawsim |
| Summer |
 Silde |
 Tamiz |
 Kirkuyey |
| Fall |
 Kazan |
 Karasa |
 Jeltoskan |
| Holy Days |
 Holy Week |
Winter Months
- Kantar - the first month of winter
- Akpan - the second month of winter
- Nawriz - the third month of winter
Spring Months
- Sawir - the first month of spring
- Mamir - the second month of spring
- Mawsim - the third month of spring
Summer Months
- Silde - the first month of summer
- Tamiz - the second month of summer
- Kirkuyey - the third month of summer
Autumn Months
- Kazan - the first month of autumn
- Karasa - the second month of autumn
- Jeltoskan - the third month of autumn
Special Days
The Otan Month
Each Otan month is made up of 5 weeks and each week of 6 days for a total of 30 days. The weeks are numbered and can be referred to as 1st week, 2nd week, etc.; however, each week has a specific name as follows:
The Otan Week
Subsequently each day of the week has its own name. In Otan, various regions may have specific observances and traditions related to each day of the week. These days are named as follows.
- Dusenbi - demarked by everyone as a day of hard work.
- Seysenbi - more work.
- Sarsenbi - more work.
- Beysenbi - more work.
- Juma - demarked by the common people as a day to let off steam.
- Senbi - demarked by the pious as a day of worship.
During the Holy Week, every four years in the Otan Calendar, there is a leap day, a seventh day in the Holy Week, which is referred to as:
The Otan Day
The Otan Day is divided into 24 hours.
The Great Erasure
The years in Otan are often designated "IM", which stands for Incipit Mundi (The Beginning of the World); the most logically consistent two-letter designation for the era before the Great Erasure would be AM, standing for Ante Memoriam. In Latin, this translates to "Before Memory" — the years leading up to the Great Erasure, counting backward (or marking the lost age before the slate was wiped).
It perfectly captures the Otanian philosophical view that whatever existed before the year 1 IM is not just "pre-history," but belonged to an entirely different world that has since been discarded or forgotten. While Sophists, historians, and treasure hunters might find artifacts or ruins from the AM era, those items are treated as remnants of a ghostly, alien reality that has no legal or spiritual claim on the current year (261 IM at the time of this writing).
