Most of Western Terrok has adopted the Lundoran calendar as the universal means to track the movement of days and years. According to this calendar, the common era began with the founding of the Lundoran Empire. While other human civilizations were tracking kings, chiefs, plagues, famines, wars and other temporally brief epochs, the Lundorans plodded happily along with their growing sequence of years, until everyone else took note and caught on to the benefits of having one long linear frame by which to tell time. 

Thus, according to the Lundorans, the party began with them. 

It should be noted before we begin that there are a few opposing schools of thought. Dwarves, for example, base their calendar on the World Stone, a giant flat boulder that slowly rotates at the rate of 1.586 thousandths of a degree each year. They give this as evidence that the world began 227,000 years before present and base their history on this fact. 

The Church of One also weighs in with its time scale based on the creation of man (or rather the transplantation of man, since they believe humans came from somewhere else before they were placed in Terrok by the supreme deity). According to 'Church Reckoning,' there is only one era worth tracking, and it began in LEY -1745, which would put our current date (as of the Silver Blades series) of LEY 3252 at CR 4997. 

Incidentally, at least one, and possibly as many as ten (depending on interpretation) church prophets have predicted the end of the world in CR 5000. 

The Lundoran Calendar is made up of 12 months. They have varying numbers of days in each, but added up, they track a 360 day year starting with Dauroj 1st: 

Spring

  Dauroj - 31 days

  Warst (Planting) - 32 days

  Tenure - 28 days

Summer

  Exes - 35 days

  Fanwar - 31 days

  B'Dhau (Banishing) - 24 days

Autumn

  Enya - 29 days

  Farhl (Harvest) - 32 days

  Talil - 31 days

Winter

  Fustus - 27 days

  Vazor - 29 days

  Solist - 31 days

Lundorans' seven weekdays are numbered, but time has modified use and pronunciation to generate new words: Fursay, Sconday, Thirday, Forday, Fiday, Siday, Svenday. 

The Dorondian Calendar used by dwarves also tracks 360 days, a Terrokian year scientifically proven by mountain dwarf philosophers in ages past. However, these great minds saw no reason to base time on anything so irrelevant as seasons or the length of daylight, shut in underground as they were. Their new year begins almost arbitrarily on Fahrl 3rd of the human calendar, and proceeds in eleven even months of 32 days, with an extra 8-day week set aside at the end for feasting and tribute to king and clan. 

Dorondian months are numbered, 1 through 11, as are their days (1-32) and days of the week (1-8). Only the feast week has its own name, usually named after the current king of a kingdom (as illustrated by 'The Week of Ironcrown' or 'Ironcrown Week' in Durmyr, currently). It is known simply as 'Feast Week' in mixed company so as not to offend visiting dignitaries or non-dwarves. 

The only other calendars in widespread use are the Druidic Calendar, a complicated system of 3-day "cycles" that includes a number of holy days, traditions and duties based on lunar and seasonal cycles, and the Tilwenic Calendar, a casual system of tracking years but not much else beyond the seasonal celebrations and feast days. 

The Druidic Calendar, sometimes called the "Old Gods' Reckoning" is seldom used except by pantheistic priests and the relatively few actual druids in Terrok. Its new year begins on the first day of Spring (although it isn't known whether the Lundorans borrowed this idea or the other way around). It seems to be based on a system of threes. Three seasons of 120 days, divided into ten 12-day "watches," which are further divided into four 3-day cycles each.