4. Ermis Calendar

History¶

The Erimean calendar is based on the rotation of the Strom around the interior of the planet. The following calendar system has been devised by the Dyarchy as a means of best coordinating all denizens of Ermis. Its adoption has been widespread amongst all but the Faeir, who typically insist on their own idiosyncratic conception of the passage of time (or lack thereof; many Faeir simply ignore the passage of time altogether).

Time Units¶

1 rotation of the interior storm = 1 chron
10 chrons = 1 decachron
10 decachron = 1 hectochron
10 hectochron = 1 kilochron
10 kilochron = 1 myriachron

So in this system, time units are structured decimally rather than using irregular bases like 365 days per year. Major events provide reference points within the decimal system.

Major Time Demarcations¶

Ermis Time Unit	Decimal Subdivisions	Earth Time
1 nanochron		0.012 minutes = .72 seconds
1 picochron	10 nanochrons	0.12 minutes = 7.2 seconds
1 millichron	10 picochrons 100 nanochrons	1.2 minutes = 72 seconds
1 centichron	10 millichrons 100 picochrons 1,000 nanochrons	12 minutes
1 decichron	10 centichrons	120 minutes
1 chron	10 decichrons	20 hours
1 decachron	10 chrons	200 hours = 8.3 days
1 hectochron	10 decachrons	83 days
1 kilochron	10 hectocrons 100 decachrons 1000 chrons	830 days (~2.27 year)
1 myriachron	10 kilochrons 100 hectochrons 1000 decachrons	8300 days (~22.5 years)
1 metachron	10 myriachrons 100 kilochrons	~225 years
1 megachron	10 metachrons 100 myriachrons	~2250 years

Heliodis = the point when the storm reaches maximum brightness, often referred to as “Strom’s flow”.
Heliopos = the point when the storm reaches maximum dimness, often referred to as “Strom’s ebb”.
Aurorafall = a major light display when the storm reaches the Kra’Aav mountain range.

Naming Convention:¶

1st chrons, 2nd chrons, etc within a decachron
1st decachron, 2nd decachron, etc within a hectochron
Similar naming for hectochron within a kilochron, etc

Calendar System¶

Chrons (Days)¶

1	2	3	4	5
Monodia	Dyodia	Tritodia	Tetradodia	Pentadia
6	7	8	9	10
Hexadia	Heptadia	Octodia	Enneadia	Decadia

Decachrons (Weeks)¶

1	2	3	4	5
Monoseptem	Dyoseptem	Tritoseptem	Tetraseptem	Pentaseptem
6	7	8	9	10
Hexaseptem	Heptaseptem	Octoseptem	Enneaseptem	Decaseptem

Hectochrons (Months)¶

1	2	3	4	5
Monomēn	Dyomēn	Tritomēn	Tetramēn	Pentamēn
6	7	8	9	10
Hexamēn	Heptamēn	Octomēn	Enneamēn	Decamēn

Last update : July 16, 2024
Created : February 1, 2024