The Calendar Time Scales reference the units of time people are usually most familiar with seeing on the calendar. The units of Year, and Day are familiar, and are affixed to the orbit of the Earth around the Sun and the rotation that makes up one day.
The Earth Epic Calendar is unique in that in addition to being a solar calendar, it also tracks lunar cycles. But it doesn’t tie the lunar cycle together with the solar cycle. Instead, the Earth Epic calendar divides the year into four Quarters of 91-92 days each and these are tied to the solar cycle. Months are–in a manner of speaking–included in the Earth Epic Calendar, too, but unlike quarters they are NOT tied to the solar cycle–they exclusively serve to track the cycles of the moon, which was their original purpose in ancient calendars. This is why we call these lunar months Moons.
As such, the five units of time measured within the Calendar Time Scales are as follows:
Year (4 quarters or 365-366 days)
Quarter (91-92 days)
Moon (29-30 days)
Week (7 days)
Day (same length as Gregorian calendar)