The Standardized Timekeeping System

Time is kept in the Mortal Plane via 12-month years, 30-day months, 24-hour days, 60-minute hours, and 60-second minutes. Weeks do not exist.

Yearly months are titled as follows:


 * 1) Frostthaw
 * 2) Beastrouse
 * 3) Rainfall
 * 4) Greensprout
 * 5) Greenstrive
 * 6) Sunstretch
 * 7) Blazefall
 * 8) Redsprout
 * 9) Redstrive
 * 10) Moonstretch
 * 11) Beastrest
 * 12) Snowfall

For example, 3 PM on November 2nd would be written as “the 15th hour on the second day of Beastrest.”

Currently, it is the year 3020 in the Mortal Plane, because the Sovereign allegedly founded Astrea 3020 years ago.

Origins
2000 years in the past, far before Miasmia was destroyed by demons, Astrean scholars devised this system for keeping time, using the time of their own nation's founding (at least according to legend) as the basis for "Year 0," and determining the lengths of years by approximating the changing of seasons. Since nobody else had any better ideas, this system was adopted and became tradition.