12 “moons” of 28 days each, broken into four 7-day quarters:
The New Quarter
- from new moon to half full
The Full Quarter
- from half full to full moon
The Ebbing Quarter
- from full moon to half dark
The Dark Quarter
-from half dark to full dark.
Each three-moon period makes up a season, after which there is a single 7 – day period where the season changes before the next moon starts.
The “moons” and seasons (and season festivals) are as follows: (the new year starts with spring)
FlowerAscending (summer starts)
PeakGathering (autumn starts)
BloodDescending (winter starts)
IceReturning (spring, and the new year, begins after)
The days of each quarter are named for the Elder Gods, with the 7th day commemorating all the Elders.
The convention, when giving a date, is to either give a date and moon, or else a day, phase, and moon.
It is equally acceptable to use “the 28th day of the Blood Moon” as it is to say “Eldall dark in Blood”
The festival weeks tend to use the second method most. So the first day of the winter festival would be “Solan Descending”