#calendar system

[dustbunnyprophet]

Mandalorian Dating Systems and Calendars

After spending the whole afternoon developing a dating and calendar system for the Mando-centric fic I’m currently writing, I ended up with not one, but two different systems (and some headcanons about the Galactic Republic dating system).

For simplicity’s sake let’s assume the Galactic Republic uses predominantly the year of the Ruusan Reformation epoch for their dating system. The year 0 ARR (After the Ruusan Reformation) corresponds to the year 1000 BBY (Before the Battle of Yavin). The calendar system is the Coruscant-based standard one with the year’s length being 368 days. The date notation is yyyy.ddd (e.g. 948.126 ARR is the 126th day of the year 948 After the Ruusan Reformation).

Mandalore was founded in 9991 BBY so they began their dating system with the Founding of Mandalore (FoM). I headcanon the Taungs decided to keep their calendar system unchanged after leaving Coruscant and eventually colonizing Mandalore which means a Mandalorian year has 368 days just like the Galactic Republic one. Unlike the latter, however, the Mandalorian year begins 67 days later (e.g. 9253.1 FoM, the first day of the year 9253 since the Founding of Mandalore would be 262.68 ARR). 

Why a 67 days discrepancy? It would be weirder if they were synchronised.

Since I cannot imagine the New Mandalorians would want to use the FoM as their dating system, and considering the movement began after the Mandalorian Excision, the New Mandalorian Calendar (NMC) system will use the Excision (738 BBY, 262 ARR, 9253 FoM) as year 0. The length of the year and the New Year are identical to the traditional Mandalorian calendar system.

So basically

0 BBY = 9991 FoM = 738 NMC = 1000 ARR

Cheat sheet:

BBY: Before the Battle of Yavin

FoM: Foundation of Mandalore

NMC: New Mandalorian Calendar

ARR: After the Ruusan Reformation

Some notable dates of Legend/Disney canon events in the various dating systems:

934 ARR (9925 FoM, 672 NMC, 66 BBY) Jango Fett is born

940 ARR (9931 FoM, 678 NMC, 60 BBY) the Mandalorian Civil War begins

943 ARR (9934 FoM, 681 NMC, 57 BBY) Obi-wan Kenobi is born

948 ARR (9939 FoM, 686 NMC, 52 BBY) the Battle of Korda VI is fought; Sheev Palpatine is elected Senator

955 ARR (9946 FoM, 693 NMC, 45 BBY) Obi-wan Kenobi becomes Master Jinn’s padawan

956 ARR (9947 FoM, 694 NMC, 44 BBY) the Battle of Galidraan is fought; the Stark Hyperspace War begins

959 ARR (9950 FoM, 697 NMC, 41 BBY) Anakin Skywalker is born

961 ARR (9952 FoM, 699 NMC, 39 BBY) Anakin and Shmi Skywalker are sold to Gardulla and begin their lives on Tatooine

[covenawhite66]

Archaeologists have found that a straight stone causeway on Mount Ttlaloc in Mexico aligns with the rising sun on February 23rd/24th.

The long causeway at the summit strongly suggests that the ceremonial structure was used as a solar landmark, aligning very precisely with the rising sun on February 23 to 24 and October 19 to 20. The same alignment is found if Mount Tlaloc is viewed from Mount Tepeyac, a holy site whose use as a sacred mount and solar observation post preceded the establishment of the Mexica civilization in the Basin.”

The mountain was worshiped by the Aztecs, who associated it with the rain god Tlaloc as one of his earthly dwelling places, called Tlalocan.

Extravagant ceremonies, plentiful offerings, and the lives of young Mesoamericans were all offered to Tlaloc in order to appease him at the beginning of the rain season.

The researchers state in their paper: “Many early codices seem to validate the working hypothesis that Mount Tlaloc was instrumental in the establishment of the date of the Basin’s new year and in the adjustments necessary to keep the agricultural calendar in synchrony with the solar year.”

[pseuddamntired]

I’ll be honest, I never know which one is used where I live. Like. I’m 87% sure that it’s month/day/year, but that’s only because I have a vague sense/memory that people have complained about how the time units’ sizes are out of order in comparison to the one that goes day/month/year. But even then, I’m like. Less than 100% certain that’s not a false memory.

I try to just use abbreviations of months to make it ambiguous instead because I won’t be able to remember.

Today is 11/11

or 11/11 if you are using a completely fucking barbaric system of keeping track of dates

[gitzette]

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[maggiecheungs]

MOON PHASES 🌕

[egophiliac]

Wait, is Lilia canonically 700? I thought he was thousands of years old. Did I miss something in Chapter 7....

I thought so too! the stuff about his real birthday being lost to time, the way he talks about the planetary alignment thing that only happens every 100 years, and other things like that made me think he was waaaay older than he is. but nope, in 7-26 he says he's just shy of turning 700! (so he's actually like. 699.) his particular type of fae can live to around 1000, but he's running down early because he pushed himself too much when he was younger (and also he plays too many online games) (he was probably not serious about that but c'mon, man, at least use a blue-light filter or something).

meanwhile, Mal is from a much longer-lived race that doesn't even reach adulthood until 1000 (500 is young adult, and 200 is still a little fledgeling dragon baby). Lilia doesn't say exactly how old he is, except that he's developmentally a "little" older than the third-years (so like about 20 in dragon years? ...can Leona sense this. is this part of why he sees Malleus as his Eternal Rival.) which means he's probably somewhere around or just under 500.

...I just realized that, depending on when it happened, this means Lilia might've been, like, mentally a teenager during the flashback of The Time Baby Malleus Almost Killed Everybody. he's just had Dad Instincts his entire life, I guess.

[bogkeep]

originally for my thesis i was gonna like, focus on each aspect of the prague astronomical clock like its history, its function, and its design separately - but even other than this scope was way too big for me, the design IS the function. like, obviously, It's A Clock........ but! the reason the face plate has multiple colors is because they represent the time of day. the blue field is day, the orange is dawn and dusk, and the black circle is night. the placement of the sun symbol indicates the placement in the day cycle. I Know I Know It's A Clock Of Course It Does That but it's different to how we're used to reading clocks in this day and age.

anyway it reminded me of first year of watchmaker school, when we were learning to blue steel, a process that gives steel a specific material quality and also turns it blue. you might see high end watched that have blue hands and blue screws, for example, and it's not Just for the aesthetic, it's a sign of quality, but it has BECOME a preferred aesthetic BECAUSE of the quality. my teacher asked me if i, as a former art history student, knew whether it was common for something to Become Beautiful because it was a Desired Quality. i didn't have a good answer at the time but i have clearly not stopped thinking about it. i think it's a kind of survivorship bias - something can be the most aesthetically pleasing and beautiful but it won't really matter if it crumbles to dust within a couple years and there's no way for future generations to appreciate it. it doesn't make it less beautiful, only that we have no clue it ever existed. so in that sense, the beauty of functionality persists

[first-saturn-return]

Key astrological changes of 2025 in order of relevance

In my opinion, these are the most noteworthy astrological movements of the year 2025:

Pluto in Aquarius

Neptune in Aries

Uranus in Gemini

Saturn in Aries

Mars retrograde

Lunar Nodes in Pisces and Virgo

Venus retrograde

Jupiter in Cancer

But why?

Because most of these changes don’t occur on a yearly frequency. Therefore, when they DO happen, and especially if they happen together, that’s a big year.

Don’t believe me? Check this out:

Pluto changes signs every 12 to 30 years.

Neptune changes signs every 14 years.

Uranus changes signs every 7 years.

Saturn changes signs every 3 years.

Mars retrogrades every two years for 9 % of its cycle.

The Lunar Nodes change signs approximately every year and a half.

Venus retrogrades every year and a half for 7 % of its cycle.

Jupiter changes signs once per year.

See now why I consider 2025 to be a big year? So many changes happening in the same span of time is nothing short of extraordinary.

If you want to know the EXACT dates of these astrological events, you can grab the FREE calendar I created here: https://shorturl.at/B8icc

[literallymechanical]

I’m trying to write a “quick” reference doc of in-universe common knowledge for the players in my ttrpg campaign but every time I sit down to edit, it expands by another 200 words. The section on orbital dynamics is now almost a full page. There should not be a section on orbital dynamics. Why do I have chronic terminal writer brain. H e l p

[starrynyxa]

patrick stump being the White Dad at the Asian Family Function is really important to me and because of that, i cant ever imagine a world where he's not in love married to his wife. sorry.....

[sillimancer]

I think if you are a library and don't have an ebook that should be illegal. when you open a library they should just give you infinity copies of every possible ebook for free.

[mxtxfoodzine]

Get ready! The 2023 edition of the MXTX food zine is coming soon. 👀👀

[sasha-naell]

ASOIAF Christmas Calendar

Day XV

Renly was a metal baby, raised by a group of teenagers. He could only fall asleep listening to “Chop Suey !” by System of a down.

[runawaymarbles]

I love it when my prescriptions triple in price completely at random

[oflgtfol]

i have like a severe interest in archaeoastronomy and firsthand observations of the night sky and the techniques that humans have been using to observe for like utter millennia. and so this had led me to a weird position where even among my fellow astronomy people i'm like, too knowledgeable about certain aspects of it such that none of them know wtf i'm talking about. like yeah my one coworker will make a metaphor and say that something is like an oscilloscope, and we all nod our heads and agree because we all know what an oscilloscope is and have done experiments using one. but if i mention like, the nebra sky disc. i'm the only one who gets it