Calendars: Difference between revisions

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== Timekeeping & Celestial Mechanics ==
== Timekeeping & Celestial Mechanics ==
A mean solar year on Delgar is approximately 391.125 mean solar days long. Thus, a leap day must be added every 8 years to prevent drift.
A mean solar year on Delgar is approximately 391.125 mean solar days long. Thus, 392-day solar calendars must add 1 leap day every 8 years to prevent drift.
Each day is divided into eight three-hour units called "phases":
 
{| class="wikitable"
|+
!Phase
!Earth Time (Equinox)
!Marker
|-
|Dawning
|5 AM to 8 AM
|Sunrise
|-
|Morning
|8 AM to 11 AM
|
|-
|Noon
|11 AM to 1 PM
|Noon
|-
|Afternoon
|3 PM to 6 PM
|
|-
|Evening
|5 PM to 8 PM
|Sunset
|-
|Dimming
|8 PM to 11 PM
|
|-
|Dreaming
|11 PM to 2 AM
|Midnight
|-
|Dewing
|2 AM to 5 AM
|
|}
More precise timekeeping is rare on Delgar, but when it is done, it looks like this:
{| class="wikitable"
{| class="wikitable"
|+
|+
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=== Year ===
=== Year ===
The Araxian year is 384 days long, beginning with 1 Vymera on the summer solstice (as measured at the observatory of the [[Araxian Academy of Arcane  Sciences]]). The names of the months are taken from the 12 major [[Religion|deities]] of the Araxian pantheon.
The main Araxian year is 384 days long, beginning with 1 Vymera on the summer solstice (as measured at the observatory of the [[Araxian Academy of Arcane  Sciences]]) and ending on 32 Jaaldir. The names of the months are taken from the 12 major [[Religion|deities]] of the Araxian pantheon.


{|
{|
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You may have noticed that the Araxian year is 7.125 days shorter than the mean solar year. How does that work?
You may have noticed that the Araxian year is 7.125 days shorter than the mean solar year. How does that work?


At the end of each year, an intercalary period of 7-8 days (the ''Heptinus'') is observed before the next year begins.
Between Araxian years, an intercalary period of 7-8 days (the ''Heptinus'') is observed before the next year begins. The Heptinus is 8 days long preceding years divisible by 8 and 7 days long otherwise. It is technically not part of any year, but it is often treated as the end of the previous year.
The Heptinus is 8 days long preceding years divisible by 8 and 7 days long otherwise. It is not considered to be part of any year. As a result, although the Araxian year is only 384 days long, the number of days from one summer solstice to the next varies from 391 to 392.
 
As a result, although the Araxian year is only 384 days long, the number of days from one summer solstice to the next varies from 391 to 392.


=== Months ===
=== Months ===
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!#
!#
!Araxian
!Araxian
!Gregorian
!Earth (Gregorian, northern hemisphere)
!Season
!Season
|-
|-
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