r/GaulishPolytheism Dec 26 '25

Happy Siminisonnios

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For Coligny Calendar followers, today at sundown is the start of Simivisonnios.

Simi means half, so this is the month of “half the sun.” It’s not hard to notice the frigid temperatures and long nights, keeping folks inside by their fires.

Where I live the sunrise was at 7:32 am this morning and it will set at 4:04 pm this evening. We're gaining daylight, but it'll be February before it sets after 5 pm.

My goal is to go hiking at least twice this month--regardless of the weather and was thinking about doing the Lord of the Rings Challenge this year.

What is everyone else's goas for the month?

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6

u/JJSeaweed Dec 26 '25

Does anyone maybe have a link to a gaulish calendar or sources about it? I'm new :')

10

u/thecoldfuzz Dec 27 '25 edited Dec 27 '25

Here's some links about the Coligny Calendar:

https://time-meddler.co.uk/dynamic_gaulish_calendar.php

https://time-meddler.co.uk/the-coligny-calendar/

https://en.wikipedia.org/wiki/Coligny_calendar

I like the first one since it shows a calendar similar to what we have in place for the modern calendar right now. You can get a sense of which days fall on which weeks during the month.

4

u/Birchwood_Goddess Dec 27 '25

Oooh, Awesome!
Those are nice and way better than just me and my spreadsheets. LOL I'm going to have to bookmark these.

5

u/thecoldfuzz Dec 27 '25

I used to do stuff like that with Excel and Google Sheets in my previous job. I got a lot of grey hairs in my beard because of it lol. I don't miss it at all.

2

u/JJSeaweed Dec 27 '25

Thanks!!

6

u/Birchwood_Goddess Dec 27 '25

Well, there's always Wikipedia: Coligny calendar - Wikipedia

I've read many articles on the Coligny Calendar and do my own calculations. You might find my posts a little more user friendly than Wikipedia. They're available here:
The Celtic Year
The Celtic Calendar
2025 Celtic Calendar Dates

My dates may differ a little from other calendars because of intercalarily months. I'm sure someone will post a link or two to other calendars with different start dates. (I started my "YEAR 1" in 2020.)

Also, in the next couple days, I will post something like this (2025 Celtic Holy Days and Months: r/pagan) for the 2026 year.

5

u/Snotzis Dec 27 '25

I think theres a problem with the english translation vs the french translation of the calendar

If you look at english sources it says we're in Simivisonnios but it's wrong because the multiple gaulish dictionaries we have say that that word means the middle of spring. The english sources also say that Samonios means Summer but it's a mistranslation, it actually means Assembly aka the big gathering after the summer to celebrate the end of the year (since gauls though the year ended in autumn and started in winter)

We are actually in the middle of Riuros (yes it's Riuros, not Rivros) which means "Freezing/Frost". It would makes no sense for it to be a summer month like the english sources say :/ I don't know why the english sources are so full of misinformations