Reckoning of Rivendell

The Reckoning of Rivendell, or the Calendar of Imladris, was a calendar used by the Elves of Rivendell (Imladris is the name of that land in Sindarin). It is apparently the only Eldarin calendar described by the Hobbits in the Red Book of Westmarch.The Lord of the Rings, Appendix D
== Structure ==
It consisted of six long "months" or short seasons, called astar (sg. asta) in Quenya. Among them, Lairë (summer) and Hrívë (winter) both lasted for 72 days, while the other seasons Tuilë, Yávië, Quellë, and Coirë were each 54 days long. The Calendar of Imladris began with the day of the spring equinox.The Lord of the Rings, Appendix B
In every year called coranar ("sun-round"; pl. coranári) or loa ("growth"; pl. loar) in Quenya, there were five extra days that were not considered a part of any season and were celebrated as chief festivals. Between Yávië and Quellë were three middle-days called Enderi. The first and last days of every year were other two extra days outside seasons and called Yestarë and Mettarë in Quenya respectively. This produced a coranar to consist 365 days, but to keep a deficit of minutes from building up over time, every twelfth year (the Elvish equivalent of a leap year) Elves doubled their middle-days to make six instead of three, thus getting complete 144 solar years that formed a single yén or "great year".
However, a yén would be over 1 day too long in compare to the precise length of 144 coranári. So the Red Book states here the last year of every third yén omitted the doubling of its Enderi. Thus, every 432nd year had only 3 Enderi and lacked leap days due to that.
== Seasons and extra days ==
№	Season 	Meaning 	Length 	Shire Reckoning equivalent 	Modern equivalent
 	Yestarë	"First-day" 	1 day 	6th Astron 	28 March
1	Tuilë 	"Spring" 	54 days	7th Astron to 30th Thrimidge 	29 March to 21 May
1	Ethuil 	"Spring" 	54 days	7th Astron to 30th Thrimidge 	29 March to 21 May
2	Lairë 	"Summer" 	72 days	1st Forelithe to 9th Wedmath 	22 May to 1 August
2	Laer 	"Summer" 	72 days	1st Forelithe to 9th Wedmath 	22 May to 1 August
3	Yávië 	"Autumn" 	54 days	10th Wedmath to 3rd Winterfilth 	2 August to 24 September
3	Iavas 	"Autumn" 	54 days	10th Wedmath to 3rd Winterfilth 	2 August to 24 September
 	Enderi 	"Middle-days"	3 days 	4th to 6th Winterfilth 	25th to 27 September
4	Quellë 	"Fading" 	54 days	7th Winterfilth to 30th Blotmath	28 September to 20 November
4	Firith 	"Fading" 	54 days	7th Winterfilth to 30th Blotmath	28 September to 20 November
5	Hrívë 	"Winter" 	72 days	1st Foreyule to 10th Solmath 	21 November to 31 January
5	Rhîw 	"Winter" 	72 days	1st Foreyule to 10th Solmath 	21 November to 31 January
6	Coirë 	"Stirring" 	54 days	11th Solmath to 4th Astron 	1 February to 26 March
6	Echuir 	"Stirring" 	54 days	11th Solmath to 4th Astron 	1 February to 26 March
 	Mettarë	"Last-day" 	1 day 	5th Astron 	27 March
== Days of the week ==
Unlike that in calendars of the Númenóreans (and their Dúnedain descendants in Gondor and Arnor) and Hobbits of the Shire, an Elvish week had six days. It was called Enquië, and among its six days the chief one was Valanya, the last day ordinally. Each yén consisted 8,766 enquier.
Quenya nameSindarin nameDedication
ElenyaOrgilionStars of Varda
AnaryaOranorSun
IsilyaOrithilMoon
AldúyaOrgaladhadTwo Trees of Valinor
MenelyaOrmenelHeavens
ValanyaOrbelainValar
==Translations==
Foreign Language 	Translated name
Afrikaans 	Imladris Kalender
Albanian 	Kalendari Imladris
Amharic 	ዒምላድሪስ የቀን መቁጠሪያ
Azerbaijani 	Imladris Təqvim
Armenian 	Իմլադիս Օրացույց
Basque 	Imladris Egutegi
Belarusian Cyrillic	Імладріс Каляндар
Bengali 	ইম্লাদ্রিস পঞ্জিকা ?
Bosnian 	Imladris kalendar
Breton 	Deiziadur Imladris
Bulgarian Cyrillic 	Імладрыс Календар
Catalan 	Calendari Imladris
Cebuano 	Kalendaryo sa Imladris
Chinese 	伊姆拉崔 历法
Croatian 	Imladris kalendar
Czech 	Imladris kalendář
Danish 	Imladris kalender
Dutch 	Imladriskalender
Esperanto 	Kalendaro Imladris
Estonian 	Imladriskalender
Faroese 	Imladriskalendari
Finnish 	Imladriskalenteri
French 	Calendrier des Imladris
Frisian 	Imladriskalinder (Western)
Imladris kalender (Northern)
Galician 	Calendario Imladris
Georgian 	იმლადრისი კალენდარი
German 	Imladriskalender
Greek 	Ιμλαδρισ Ημερολόγιο
Gujarati 	ઇમલાડ્રિસ કૅલેન્ડર
Hebrew 	ימלדריס לוח שנה
Hindi 	इमलाड्रेस का कालदर्शक
Hungarian 	Imladris naptár
Icelandic 	Imladrisdagatal
Indonesian 	Kalender Imladris
Italian 	Calendario dei Imladris
Japanese 	イムラドリス暦
Javanese 	Pananggalan Imladris
Kannada 	ಇಮ್ಲಾಡ್ರಿಸ್ ಪಂಚಾಂಗ
Kazakh 	Имладрис Күнтізбе (Cyrillic) Ïmladrïs Küntizbe (Latin)
Korean 	임 라드리스 역법
Kurdish 	Salnameya Imladris (Kurmanji)
Kyrgyz Cyrillic 	Имладрис Жылнаама
Latin 	Calendarium Imladris
Lithuanian 	Imladris Kalendorius
Latvian 	Imladris Kalendārs
Macedonian Cyrillic	Календар Имладрис
Malagasy 	Ny Kalandrie Imladris
Malaysian 	Kalender Imladris
Maori 	Imladris Maramataka
Marathi 	इम्लाड्रिस कॅलेंडर
Mongolian Cyrillic 	Имладрис Цагалбар
Nepalese 	इम्लाड्रिस पात्रो
Norwegian 	Imladriskalender
Occitan 	Calendièr de Imladris
Old English 	Imladris gerīmbōc
Persian 	ایملادریس تقویم
Polish 	Kalendarz Imladris
Portuguese 	Calendário Imladris
Punjabi 	ਇਮਲਾਡ੍ਰਿਸ ਜੰਤਰੀ
Romanian 	Calendarul Imladris
Russian 	Имладрис календаря
Sardinian 	Calendàriu Imladris
Serbian 	Имладрис Календар (Cyrillic) Imladris Kalendar (Latin)
Sesotho 	Tšhupamabaka ea Imladris
Sicilian 	Calannariu Imladris
Sinhalese 	ඉම්ලාඩ්‍රිස් දින දර්ශනය
Slovak 	Kalendár Imladris
Slovenian 	Kalendár Imladris
Somalian 	Imladris Kalandar
Spanish 	Calendario Imladris
Sundanese 	Kalénder Imladris
Swahili 	Kalenda ya Imladris
Swedish 	Imladris kalendern
Tajik Cyrillic 	Тақвимӣ Имладрис
Tamil 	இம்லாட்ரிஸ் நாட்காட்டி
Telugu 	ఇమ్మెల్యేడ్రిస్ కేలండర్
Thai 	อิมลาดริสปฏิทิน
Turkish 	Imladris takvimi
Turkmen 	Imladris senenamasy
Ukrainian Cyrillic 	Календар Імладріс
Urdu 	تقویم برائے املاڈراس
Uzbek 	Имладрис Тақвим (Cyrillic) Imladris Taqvim (Latin)
Vietnamese 	Lịch Imladris
Walloon 	Calindrî Imladris
Welsh 	Calendr Imladris
Yiddish 	קאלענדאר פון ימלאַדריס
Zazaki 	Serrenameyo Imladris
==References==
==Notes==
# Or lasse-lanta 'leaf-fall'.
# Or narbeleth 'sun-waning'.
Category:Calendars
Category:Elves of Rivendell
Category:Culture in Middle-earth
de:Kalender von Imladris
pl:Kalendarz Imladris
Category:Dates