Dates

Upon their arrival in Cheridith, Humans created a dating system for their histories known as the Elder Age System. Basing the beginning of their timeline around the major, world-changing event known as the End of the Elder Age, anything that came before that time is counted back in years from that. So an event which happened two hundred years before the End of the Elder Age is marked as 200 B.E.E. (Before the End of the Elder Age – most people leave out Age from the acronym for convenience's sake). An event after that date is marked A.E.E.

Standard of Time
A universally agreed on standard of time was created by the Elders millennia before the Human Arrival.

Days
Days are called dawnbreaks and they each consist of four lights: sun ascension (6 AM to 12 PM), sun descension (12 PM to 6 PM), and two portions of nighttime (6 PM to 12 AM and 12 AM to 6 AM). Since Cheridith is a flat world, there are no seasons, and the sun does in fact revolve around the world. Each light is divided into three equal shadows. Time referral is done as such: 3 PM would be called the second shadow of the second light.

Years
A year consists of three hundred dawnbreaks, and is divided into four seasons, though these do not have the change associated with them in this world. The four seasons are merely divisions of time, dividing the year into four parts of 75 dawnbreaks each. Each of those seasons are divided into three equal weeks. Weeks each consist of 25 days.