Middle-earth calendar

J. R. R. Tolkien invented a number of calendars for his legendarium. "Middle-earth" is the term for inhabited Earth in the setting of a fictional prehistoric era, so a year is the same length as our year. Appendix D of Tolkien's The Lord of the Rings (published 1955) gives details of his invented calendars.

The most elaborate of these is the Shire Calendar used by his fictional Hobbits of the Shire. The calendar is directly based on the historical Anglo-Saxon calendar described by Bede.

The same appendix gives more information on the Shire Calendar's background in the fictional history of Middle-earth, stating that the Shire Reckoning is a conservative continuation of the calendar of Númenor as used in Middle-earth during the Second Age, but revised in the Third Age by Mardil and Hador, the first and seventh ruling Stewards of Gondor. The Hobbits retained the unreformed King's Reckoning, but introduced a reform that resulted in a fixed number of weeks (in imitation of the historical 10th-century Icelandic calendar).

Appendix D further gives some information on the Reckoning of Rivendell, the calendar used by the Elves in Imladris (Rivendell), which divided the solar year into six "seasons" or "long months".

The only allusion to a calendar of the Dwarves is made in The Hobbit, regarding the "dwarves' New Year" or Durin's Day.

Tolkien repeatedly stresses that his legendarium is set in a remote past of our Earth (as opposed to a completely fictional or mythological world),[1] and he gives intercalation methods used by the Númenóreans that amount to an average length of a year of 365.24 days and an average year in the 'Reckoning of Rivendell' of 52595144≈365.24306 days. With the caveat "if the year was then of the same length as now" Tolkien goes on to discuss historical intercalation made by the Númenóreans and their descendants, the Dúnedain, during the Second and Third Ages, assuming a tropical year of 365.2422 days.[2]

The seasons referred to in Tolkien's calendars, and in his writings in general, are those of the Northern Hemisphere.

Shire calendar

The Shire calendar or Shire Reckoning is used by the Hobbits of the Shire. Tolkien based it on the calendar reported by Bede.

The Middle-earth roots of the Shire calendar lie in Rhovanion hundreds of years before the Shire is founded. There the ancestors of Hobbits acquire a system of months (and their names) from the Men of that region.

When Hobbits migrate into Eriador, they take up the Kings' Reckoning, but maintain their old names of the months. In the King's Reckoning, the year begins on the winter solstice (Northern Hemisphere).

After migrating further to the Shire, its Hobbits begin Shire Reckoning, a new system of numbering the year. Year 1 of Shire Reckoning corresponds to the foundation of the Shire in the year 1601 of the Third Age (the founders are the Bree Hobbits Marcho and Blanco). Therefore, years of the Third Age can be converted to Shire-years by subtracting 1600. The last year of the Third Age is year 1421 on the Shire calendar. A year in the Shire is the same length as our year – 365 days, 5 hours, 48 minutes, 46 seconds. The Shire's calendar year is also divided into 12 months but all of 30 days. Five additional days are added to create a 365-day year.

For the names of the months, Tolkien used reconstructed names derived from the Anglo-Saxons; in other words, they are Tolkien's take on what English would be actually using now if it had not adopted Latin names for the months (January, February, March, etc.).

Month number Name Bede's Anglo-Saxon calendar[3] Approximate relationship to Gregorian calendar
2 Yule 22 December
1 Afteryule Æfterra Gēola 23 December to 21 January
2 Solmath Sol-mōnaþ 22 January to 20 February
3 Rethe Hrēþ-mōnaþ 21 February to 22 March
4 Astron Easter-mōnaþ 23 March to 21 April
5 Thrimidge Þrimilce-mōnaþ 22 April to 21 May
6 Forelithe Ærra Līþa 22 May to 20 June
1 Lithe 21 June
Mid-year's Day 22 June
Overlithe Leap day
2 Lithe 23 June
7 Afterlithe Æftera Līþa 24 June to 23 July
8 Wedmath Weod-mōnaþ 24 July to 22 August
9 Halimath Hālig-mōnaþ 23 August to 21 September
10 Winterfilth Winterfylleth 22 September to 21 October
11 Blotmath Blōt-mōnaþ 22 October to 20 November
12 Foreyule Ærra Gēola 21 November to 20 December
1 Yule 21 December

The Yuledays are the days that signify the end of an old year and the beginning of a new one, so 2 Yule is the first day of the year. The Lithedays are the three days in the middle of the year, 1 Lithe, Mid-year's Day, and 2 Lithe. In leap years (every fourth year except centennial years) a day is added after Mid-year's Day called Overlithe. All these days are placed outside of any month. These days are primarily holidays and feast days.

Mid-year's Day is meant to correspond to the summer solstice (Northern Hemisphere), which Tolkien describes as being 10 days earlier than the middle day of our year. However, since then the summer solstice has shifted slightly so it falls on a different date now, rendering the difference between Mid-year's Day and the middle day of our year eleven days, instead of ten.

In The Hobbit and The Lord of the Rings, the names of months and week-days are given in modern equivalents. For instance, Afteryule is called January and Sterday is called Saturday.

The Hobbits, who have adopted the King's Reckoning, alter it in a different way from the Steward's Reckoning. Like the Steward's Reckoning, they have twelve months of thirty days, and five holidays outside the months. However, they have three "extra" days in midsummer and two in midwinter, similar to the Elven calendar. In the Shire the three days of midsummer are called Lithedays, and the two days of midwinter are the Yuledays. In leap years, the extra day is added to the Lithedays and called Overlithe. The other innovation in the Shire calendar is to make Midsummer's Day (and the Overlithe) outside the week, as well as the month, meaning the days of the week will not change in relation to the days of the year. The Shire Reckoning is the calendar used in the Red Book of Westmarch, and hence in The Lord of the Rings. It counts from the founding of the Shire in T.A. 1600.

The Hobbit names of the months come from names used in the vales of Anduin in antiquity, and their meanings are often obscure or forgotten. They are:

Shire name Bree name
2 Yule2 Yule
1 LitheFirst Summerday
Midyear's DaySecond Summerday
OverlitheThird Summerday
2 LitheThird/Fourth Summerday
1 Yule1 Yule

(Given the decidedly Old English sound of these names, it can be assumed that this is Tolkien's "translation" of the archaic Westron.)

Overlithe occurs only in leap years. 2 Yule corresponds with December 22.


Lithe is a Midsummer holiday in the Shire. It is mentioned in The Fellowship of the Ring. Lithe falls between Forelithe, the sixth month of the year, and Afterlithe, the seventh month. In most years there are three Lithedays: 1 Lithe, Midyear's Day, and 2 Lithe. In Leap-years there is a fourth Litheday called Overlithe between Midyear's Day and 2 Lithe. Midyear's Day and Overlithe are not assigned any weekday, while 1 Lithe always falls on a 'Friday' and 2 Lithe is a 'Saturday'.

Lithe and the Midwinter holiday called Yule are the two major holidays in the Shire. Lithe is a time of great feasting and merriment. During Lithe, the Free Fair is held on the White Downs, where Hobbits gather to celebrate and to buy and sell goods. Every seven years at the Free Fair during Lithe, an election is held for the office of Mayor of the Shire. In the years that Overlithe occur, it is a day of special celebration. Overlithe fell during the Great Year of Plenty, in T.A. 3020 after the War of the Ring, and it is the merriest holiday in the history of the Shire.

The word lithe is from the Old English líða. This may have been the name for Midsummer, while ærra Líða and æftera Líða were used for the months June and July. The word lithe means "mild, balmy" in relation to the weather.


Although Yule is celebrated in the midwinter in the Shire, it is in some ways different from the more recently historical Yule practices in England.

The Shire's fictional Yule consists of two days called 1 Yule and 2 Yule. The last day of the year is 1 Yule and the first day of the next year is 2 Yule. The Yuledays fall between the months called Foreyule and Afteryule and are not part of either month. 1 Yule is always on a Friday and 2 Yule falls on Saturday.

Yule is one of the two chief holidays in the Shirethe other being the midsummer holiday called Lithe. The Yule celebrations last six days in total, including two days before and two days after the Yuledays. This six-day period is called Yuletide. It is a time of feasting and merriment.

After the War of the Ring, it is feared that the Yule feasts will be rather meagre due to shortages of provisions in the Shire. But large stores of food and beer are found in the tunnels of Michel Delving and in the quarries at Scary and in other places, so the Yuledays are a time of great cheer.

The Elves do not have a celebration at midwinter. It appears that the Rohirrim maintain the custom of celebrating the midwinter holiday as their ancestors the Northmen had done. The name of the holiday in Rohan is not known but it was most likely similar to "Yule."


There are seven days in the Shire week. The first day of the week is called Sterday and the last day of the week is called Highday. The Mid-year's Day and, when present, Overlithe have no weekday assignments. This arrangement is used because it causes every day to have the same weekday designation from year to year (instead of changing as in the Gregorian calendar).[4]

Day Name Meaning Nominal relationship to Gregorian calendar
Sterday Stars of Varda Saturday
Sunday Sun Sunday
Monday Moon Monday
Trewsday Two Trees of Valinor Tuesday
Hevensday Heavens Wednesday
Mersday Sea Thursday
Highday Valar Friday

Highday is a holiday with evening feasts. Tolkien states that Highday is more equivalent to our Sunday, and so translated the terms "Mersday" and "Highday" used in one of Bilbo's songs as "Saturday" and "Sunday" rather than "Thursday" and "Friday".

Calendar of Imladris

The Calendar of Imladris (Rivendell) is briefly mentioned in Appendix D as the only Eldarin (Elvish) calendar described (within the fiction of manuscript tradition employed by Tolkien in The Lord of the Rings) by the Hobbits in the Red Book of Westmarch.[5] In the same passage, some background is given on Elvish time-reckoning more generally:

"the Quenya word yén, often translated "year", really means 144 of our years. The Eldar preferred to reckon in sixes and twelves as far as possible. A 'day' of the sun they called and reckoned from sunset to sunset. The yén contained 52,596 days. For ritual rather than practical purposes the Eldar observed a week or enquië of six days; and the yén contained 8,766 of these enquiër"

The Elves also have a regular 365-day solar year called coranar meaning "sun-round" or more commonly loa meaning "growth". The Elven year, which began near the northward equinox, is divided into six seasons or 'months' which consist of four 54-day months and two 72-day months. Five or eight extra days outside the seasons make the length of the loa 365 or 368 days. Most years are 365 days, but every twelfth year is 368 days, resulting in an average year of 365.25 days with the additional suggestion that the 'Reckoning of Rivendell' made a further correction by omitting the three extra days in every third yén (once every 432 years), for an average year length of 52595144≈365.24306 days.[6]

In Rivendell, the loa began on the spring equinox and was divided into six "months" or seasons, as follows.

Quenya name Sindarin name English translation Duration
tuilëethuilspring54 days
lairëlaersummer72 days
yáviëiavasautumn54 days
quellëfirithfading54 days
hrívërhîwwinter72 days
coirëechuirstirring54 days

Five other days, two between coirë and tuilë and three between yávië and quellë, meant the calendar added up to 365 days. Irregularities were allowed for by adding another three days every twelve years, except the last year of a yén.

Númenórean calendar

The calendar developed by the Men of Middle-earth is called the King's Reckoning, and is in many ways similar to our own (Gregorian). It has a week of seven days. The calendar year has 365 days (except in leap-years), and twelve months (astar): ten with 30 days and two with 31.

Unlike the Gregorian calendar, the King's Reckoning has some days outside the months. These special monthless days, a feature borrowed from Elvish Calendars, were generally holidays. Two of these special days were the pair which book-ends the year; thus, in the King's Reckoning, the last month of the year is followed by mettarë, the last day of the year; this is then followed yestarë, New Year's Day, which is not however part of the first month. The other monthless day is loëndë, mid-year day. In a leap year there two mid-year days.

In the Second and Third Ages, years are reckoned from the beginning of the age.

Various irregularities occur in this calendar, especially following the Downfall. In T.A. 2060, Mardil Voronwë revises the calendar, and the new version becomes the Steward's Reckoning. The months of Steward's Reckoning all have 30 days, and there are two additional "extra" days at the equinoxes, tuilérë and yáviérë. The five extra days (the equinoxes, midsummer and two at midwinter) are holidays.

In T.A. 3019, the Reunited Kingdom adopts a New Reckoning, which begins the year on March 25 (cf. Lady Day, the English new year between A.D. 1155 and 1752), the date of the downfall of Sauron. This makes it correspond more closely to the spring beginning of the Elven calendar.

The months of the Reckonings are in Quenya (or Sindarin among the Dúnedain) and are:

Quenya name[4] Sindarin name[4] Meaning
NarvinyëNarwainnew sun[7]
SúlimëGwaeronwindy / wind month[7][8]
VíressëGwirithnew / young / budding? [7]
LótessëLothronflower month[7]
YavanniëIvannethfruit giving[7]
RingarëGirithroncold / shivering month[7]

According to Jim Allan in An Introduction to Elvish, the Númenórean Calendar is similar to the French Republican Calendar. For example, the names of the third month of Winter, Súlímë and Ventôse, both mean 'Windy'. When lined up in this way, most of the month names have matching or similar meanings.[9]

Durin's Day

Tolkien's only mention of the Dwarves' calendar is made in The Hobbit, regarding the "dwarves' New Year" or Durin's Day, in the voice of Thorin Oakenshield.[13]

"The first day of the dwarves' New Year [...] is, as all should know, the first day of the last moon of Autumn on the threshold of Winter."

In The Hobbit, the secret writing on the map that Gandalf had received from Thráin II mentioned Durin's Day. It stated that the “last light of Durin's Day” would reveal the secret door into the Lonely Mountain. This came true later that year (T.A. 2941), when the first crescent moon appeared a week before the end of autumn.

Balin, having refounded the Dwarf-colony of Moria, chose 10 “November” T.A. 2994 to seek Durin's Crown in Mirrormere, suggesting that could have been the date of Durin's Day that year.

Astronomer Bradley E. Schaefer has analysed the astronomical determinants of Durin's Day. He concluded that – as with many real-world lunar calendars – the date of Durin's Day is observational, dependent on the first visible crescent moon.[14]

The term Durin's Day was also used for the time in the First Age, when [the original] Durin the Deathless reigned.[15]

See also


  1. "the year no doubt was of the same length [as ours], for long ago as those times are now reckoned in years and lives of men, they were not very remote according to the memory of the Earth" Appendix D.
  2. This was the value cited in textbooks in the 1940s, e.g. William Marshall Smart, Text-book on Spherical Astronomy Author, 1947, p. 141.
  3. Frank Merry Stenton, Anglo-Saxon England, Oxford University Press, 1971, 97f.; M. P. Nilsson, Primitive Time-Reckoning. A Study in the Origins and Development of the Art of Counting Time among the Primitive and Early Culture Peoples, Lund, 1920; c.f. Stephanie Hollis, Michael Wright, Old English Prose of Secular Learning, Annotated Bibliographies of Old and Middle English literature vol. 4, Boydell & Brewer Ltd, 1992, p. 194.
  4. Return of the King, Appendix D
  5. "Reckoning of Rivendell". Encyclopedia of Arda. Mark Fisher. 17 August 2002.
  6. "How any resulting inaccuracy was dealt with is uncertain. If the year was then of the same length as now, the yén would have been more than a day too long. That there was an inaccuracy is shown by a not in the Calendars of the Red Book to the effect that in the 'Reckoning of Rivendell' the last year of every third yén was shortened by three days: the doubling of the three enderi due in that year was omitted; 'but that has not happened in our time'."
  7. Salo 2004, Appendix 6
  8. Silmarillion, Appendix, s.v. sul
  9. Allan, Jim (1978). An Introduction to Elvish. Grahaeme Young. p. 151. ISBN 978-0-905220-10-9.
  10. Silmarillion, Appendix, s.v. ur
  11. Lost Tales I, Cottage of Lost Play, pg 41
  12. Silmarillion, Appendix, s.v. hith
  13. Tolkien, J.R.R. "A Short Rest". The Hobbit. chapter 3.
  14. Schaefer, Bradley E. (1994). "The Hobbit and Durin's Day". The Griffith Observer. Griffith Observatory. 58 (11): 12–17.
  15. Tolkien, J.R.R. (1966) [1954]. The Fellowship of the Ring (2nd ed.). George Allen & Unwin. Book II, chapter 4, page 330. ISBN 0 04 823045 6. The world was fair in Durin's Day..
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