The Lunisolar Calendar of the Germanic Peoples

Ártala

The Year Counter

Moon phases, seasonal festivals, leap years and the Twelve Nights – reconstructed from historical sources, free of esoteric embellishment.
Now as an app – in 12 languages.

What is Ártala?
Alvíss, the Ártala mascot

"Ártala" (Old Norse for "year counter") is the word the elves use for the moon in the Eddic poem Alvíssmál – because in Germanic heathendom, timekeeping was governed by the moon. Alvíss, the "All-Wise" – a dwarf who knows all things by all their names – accompanies you as mascot through the calendar.

After publishing the Germanic lunisolar calendar as a printed wall calendar under the name "Ártala" from 2017 to 2021, I can finally offer it as an app.

WEB
since 03/2026
ANDROID
live · 06/2026
iOS
live · 07/2026
LANGUAGES
12 · new

"Reconstructing a lunisolar calendar in book form is a very theoretical affair. With the help of an app like Ártala, something so abstract becomes a tool that allows you to feel your way into the historical qualities of time and, if you wish, to revive them for your own everyday life."

– Andreas E. Zautner, author of The Lunisolar Calendar of the Germanic Peoples
Features

Six Views of Time

Animated preview of the Month View
I

Month View

The Germanic lunar month with Gregorian dates as reference points, moon phases, festivals, and matching illustrations.

Animated preview of the Day View
II

Day View

Key data for the day: current moon phase, countdowns to lunar phases and festivals, plus Hávamál quotes.

Animated preview of the Rune Oracle
III

Rune Oracle

Draw the daily rune and perform three-rune readings multiple times a day – in Elder Futhark, Younger Futhark, or Anglo-Saxon Futhorc.

Animated preview of the Moon View
IV

Moon View

The moon in its current phase; the highlighted runes show the symbols drawn in the oracle, each in its corresponding colour.

Animated preview of the Wheel of the Year
V

Wheel of the Year

Not the wheel of the year you might expect: see where you stand in the cycle, when each festival falls, and navigate straight into the festival lexicon.

Animated preview of the Solarhringr
VI

Solarhringr

The only true new creation in the app: historically attested divisions of the day, translated into the concept of temporal hours.

New · In 12 Languages

Alvíss Knows Every Name

In the Alvíssmál, the dwarf Alvíss names the moon in the tongues of all beings: among men it is called "Máni" – and "kalla alfar ártala", the elves call it year counter. Now the app itself knows more than one name for the moon: it speaks twelve languages – on Android, iOS and on the web.

Recommended by Eldaring e. V.

Eldaring, the largest Germanic Heathen organisation in the German-speaking world, endorses and cooperates with Ártala. With the signing of a cooperation agreement, the Eldaring board and Ártala have committed to raising mutual public awareness.

In addition, the previously entirely self-funded project has been made more accessible through the organisation's support – resulting in lower prices for all future customers, and particularly so for Eldaring members. Eldaring stands for an open, inclusive, and academically grounded approach to Germanic Heathendom and is a recognised non-profit.

Signing of the cooperation agreement between Eldaring e. V. and Ártala
Signing ceremony · 2 May 2026
"With calendars we plan the future, but with the lunar calendar we also illuminate a piece of our past on the way to tomorrow. That is the magic of Damian Haller's creation and reconstruction called Ártala."
Dr Alfred Becker
Anglicist, Germanist, Theologian
"Those who discover Germanic Heathendom today almost never encounter the few scientifically documented remnants right away. With the Ártala calendar, having academically grounded knowledge of how the year was truly divided and when each festival was actually celebrated is an invaluable help!"
Luci van Org
Author and Artist

4.83 of 5 stars on ProvenExpert 6 reviews from the wall-calendar era (2018–2019)

★ 4.9 · 14 reviews on Google Play and the App Store
"The app runs very smoothly, offers a wealth of detailed content and is designed with great care. Very well done."
Julia-Marie S. · Google Play
"Based on historical foundations of Germanic and Norse timekeeping and very user-friendly. Well thought-out and informative."
Kat Black · Google Play
"Beautifully designed and easy to use. So many interesting insights. I had been looking for an app like this for a long time!"
Marion R. · Google Play
"Whether as a source for historical data or for your own ritual practice — a treasure trove of possibilities."
Sebastian St. · Google Play
"If you're interested in Germanic mythology, I can wholeheartedly recommend this app."
Gray Maske · Google Play
"Very good app with lots of information and gorgeous design."
Christiane · Google Play
"Interesting and beautifully designed app."
Reinhard M. · Google Play
"Wonderful app. By now it accompanies me every single day."
Katrin M. · Google Play
"THE app for everyone who wants to live by the moon in the truest sense of the word — not only for Ásatrú and other heathens, but for anyone looking for a bound lunar calendar."
Aswin M. · Google Play
"A beautifully designed and wonderful app. I now use it frequently for my magical practice."
Sunray Ravyn · Google Play
"No new age bullshittery but an academically sourced calendar for the practicing follower of the ol' Norse tradition."
Tobias B. · Google Play
"The app runs very smoothly, offers a wealth of detailed content and is designed with great care. Very well done."
Julia-Marie S. · Google Play
"Based on historical foundations of Germanic and Norse timekeeping and very user-friendly. Well thought-out and informative."
Kat Black · Google Play
"Beautifully designed and easy to use. So many interesting insights. I had been looking for an app like this for a long time!"
Marion R. · Google Play
"Whether as a source for historical data or for your own ritual practice — a treasure trove of possibilities."
Sebastian St. · Google Play
"If you're interested in Germanic mythology, I can wholeheartedly recommend this app."
Gray Maske · Google Play
"Very good app with lots of information and gorgeous design."
Christiane · Google Play
"Interesting and beautifully designed app."
Reinhard M. · Google Play
"Wonderful app. By now it accompanies me every single day."
Katrin M. · Google Play
"THE app for everyone who wants to live by the moon in the truest sense of the word — not only for Ásatrú and other heathens, but for anyone looking for a bound lunar calendar."
Aswin M. · Google Play
"A beautifully designed and wonderful app. I now use it frequently for my magical practice."
Sunray Ravyn · Google Play
"No new age bullshittery but an academically sourced calendar for the practicing follower of the ol' Norse tradition."
Tobias B. · Google Play
The Nebra Sky Disc – Europe's earliest concrete depiction of the heavens
Long-form Article

The Moon as Year Counter

On the history of humankind's oldest calendars

Time Travel · the sky turns with Earth's axis Present Above the north celestial pole: Polaris

Long before writing, cities or empires existed, humans measured time by the moon. As early as 10,000 years ago, Mesolithic hunters in Scotland (Warren Field) erected a monumental arrangement of twelve pits – a lunisolar calendar.

Those who count by the moon today do not stand at the edge of history, but at its very centre.

Read the full article
Ornamental moon symbol of the Germanic lunisolar calendar Ártala
Long-form Article

The Germanic Lunar Calendar

From the Germanic peoples' bound lunar calendar to an app

The Germanic lunar calendar was a lunisolar calendar: the Moon sets the beat, a leap month binds it to the solar year. Documented in Tacitus, Bede, and Old Norse texts – and usable again today as an app.

Read the full article
FAQ

Questions about the Germanic lunar calendar

What is a Germanic lunar calendar?

A Germanic lunar calendar (more precisely: a lunisolar calendar) is a timekeeping system in which each month begins with the first visible new moon crescent. The months are bound to the solar year through a leap month rule anchored to the winter solstice. The festivals of the year cycle – Yule, Sumarmál, the Winter Nights and the Blóts – arise from the interplay of moon and sun.

More: the Winter Nights

What is a lunisolar calendar?

A lunisolar calendar combines lunar months (each approx. 29.5 days) with the solar year (approx. 365.25 days). Since twelve lunar months amount to only about 354 days, a thirteenth leap month is inserted in certain years to keep the months aligned with the seasons. The Germanic peoples, Jews, Chinese, Indians and many other cultures used or still use lunisolar calendars.

More: What is a lunisolar calendar?

How does the Germanic leap month work?

In the Germanic lunisolar calendar, the winter solstice serves as the anchor. If after twelve lunar months the winter solstice does not yet fall within the last month, a thirteenth leap month is inserted. Andreas E. Zautner reconstructed this system from historical sources (Bede, Grágás, Adam of Bremen).

When is Yule (the Julfest)?

Jól – the Yule festival, in German the Julfest – has no fixed date in the Germanic lunar calendar: it is celebrated on the full moon of the first lunar month after the winter solstice, the Late Yule Month. Yule therefore shifts from year to year relative to the Gregorian calendar. Ártala calculates the date automatically and counts down the days to the next Yule.

Which languages is Ártala available in?

Ártala is available in twelve languages: German, English, Icelandic, Norwegian, Danish, Swedish, Finnish, Dutch, French, Italian, Spanish and Portuguese. The app starts in your system language and can be switched to any other language at any time in the settings – on Android, iOS and on the web.

What are the Rauhnächte (Twelve Nights)?

The Rauhnächte (also known as the Twelve Nights) are the difference days between the lunar year (354 days) and the solar year (365 days). These eleven to twelve nights around the winter solstice were considered a special liminal time by the Germanic peoples. The Ártala calendar calculates and displays them.

Ártala The Germanic Lunar Calendar Get it on Google Play Download on the App Store

Start counting the seasons.

In the stores – or straight in the web app.