Cositene calendar

The Cositene calendar is actually a set of several calendars with varying systems and calendar eras. Like its predecessor the Tastanic calendar, the primary underlying systems are solar, inherited from the Sepcan calendar.

Systems

Mstic sidereal calendar

The Mstic sidereal calendar (MSC) is the first of all calendars to be created and used in the Cositene tradition; as suggested by the name it was created by Mstis. Calendar conventions were eschewed by Mstis to show a departure from pre-Cositene culture.

The MSC is not a precise calendar, but rather a means of only vaguely accounting for time through the astrological sign (of a zodiac Mstis created) the sun was transiting in, defined by the constellation. The MSC is often considered to be a 'qualitative' rather than quantitative calendar due to its design and underlying philosophy, although some scholars question if it may be known as a calendar at all. The constellations used were inherited from Sepcan and to an extent Tastanic astronomy.

Mstis assigned podesic significance to each constellation. Although the MSC itself is no longer in use today, these definitions of the attributes of signs have generally survived in Cositene culture, in areas such as astrology and divination.

Lutheran sidereal calendar

The Lutheran sidereal calendar (LSC), created by Great-Saint Luther, a son of Mstis, also uses astrological signs as the primary sub-unit of time rather than months. Building up on the divisions created by Mstis, Luther made precise, mathematical and astronomical definitions to all elements of his system.

The LSC year is divided into 12 signs, each of a length of 30 days, giving a year of 360 days in length. The LSC day initially inherited its precise definitions from the Tastanic system that was established in 725, which is a solar day using the meridian as a defining metric; however in 1159 Adytum decreed that a stellar day based on Esquarium's position relative to Kamzy, a bright star previously frequently featured in Sepcan divination, be used, determined to span approximately 23 hours 56 minutes and 1.8 seconds.

The signs are as follows:

• Lennen ('cart, wheel')
• Tunnen ('to pull', referencing the hero ???)
• Moyen ('blossom')
• Buy ('serpent')
• Varen ('fire')
• Zenen ('shining fire')
• Kruven (Vitrian, 'blood', referencing the hero ???)
• Dezrov ('waterfall')
• Ponen ('milk', referencing the goddess ???)
• Sa ('tiger')
• Ran ('falcon')
• Kan ('crow')

Many of the sign names use Sepcan words as those were the terms for the constellations used as their definitions. Due to axial precession, the position of the signs in more conventional solar years have migrated through history.

Prophetic events calendar

The Prophetic Events Calendar (PEC) is even less tied to astronomic phenomena than the sidereal calendars; it divides the year into epochs of drastically unequal length, marked by events in Mstis's life. It begins on the day of Mstis's ascension.

The PEC first divides the year into 4 quarters: (to be named)

Conventional solar calendar

The LSC's usage was found to be inconvenient and impractical for more conventional use due to its unusual division of time. In 1366 the Volomerian astronomer and priest Myroslav of Kolach designed a completely solar calendar by reviving Sepcan and Tastanic systems. This calendar more closely mapped the year to the time taken to orbit around the sun. It used the winter solstice as its reference point.

The month names were identical with the LSC, as it used the names of the signs the Sun travelled in for the greater part of that month. The month of Sa became the first one in the order instead.

The CSC is the main calendar used in West Borea today for public purposes.

Calendar era

Different calendar eras are used in the Cositene systems. There are three main epochs:

• The first revelation to Mstis, in 921.
• The ascension of Mstis, in 941.
• The appearance of Adytum, in 1151.

The ascension of Mstis is the main epoch used in public systems today; by this definition 2019 is the year 1078 by CSC reckoning.