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For other uses, see Fortnight (disambiguation).

A fortnight is a unit of time equal to 14 days (2 weeks). The word derives from the Old English: fēowertyne niht, meaning "fourteen nights".[1][2] Fortnight and fortnightly are commonly used words in the English-speaking world, where some wages, salaries and social security benefits are paid on a fortnightly basis,[3] except North America, where it is rare outside of some Canadian regions and insular traditional communities (e.g. Amish) in the United States. American and Canadian payroll systems may use the term biweekly in reference to pay periods every two weeks. Neither term should be confused with semimonthly (in one year there are 26 fortnightly or biweekly versus 24 semimonthly pay periods).


For more information see eclipse cycle.

In astronomy, a fortnight is half a synodic month[citation needed], the mean average time between a full moon and a new moon (and vice versa). This is equal to 14.77 days.[4][5] In the Hindu calendar this period is called a Paksha (also Paksa) and consists of 15 Tithi.[citation needed]

In other languages[edit]

In many languages, there is no single word for a two-week period and the equivalents of "two weeks", "14 days" or (counting inclusively) "15 days" have to be used. Among the romance languages, there are the terms quincena (or quince días) in Spanish and Galician, quinzena (Portuguese and Catalan), quindicina (Italian),and quinzaine (French), all meaning "15 days"; Italian also has the word "bisettimanale", literally meaning biweekly. Similarly, in Greek, the term δεκαπενθήμερο (dekapenthímero), meaning "15 days", is also used. In Hebrew, the single-word (shvu′ayim) שבועיים means exactly "two weeks". In Arabic, a similar single-word is used (osbu′ayn) أسبوعين, also meaning "two weeks". ( The Hindu calendar uses the Sanskrit word "paksha" to mean one half of a lunar month, which is between 14 and 15 solar days. In Welsh, the term pythefnos, meaning "15 nights", is used instead. This is in keeping with the Welsh term for a week, which is wythnos ("eight nights"). In Irish, the term coicís and in Czech the terms čtrnáctidenní and dvoutýdenní have the same meaning as fortnight.

See also[edit]


  1. ^ The Concise Oxford Dictionary, 5th Edition, 1964, p. 480
  2. ^ Senight, sennight or se'night (seven-night), an old word for the week, was still in use in the early 19th century, to judge from Jane Austen's letters.
  3. ^ "Australian Government - How much Disability Support Pension do I get?". Archived from the original on 2008-04-16. Retrieved 2008-05-22. 
  4. ^ Littmann, Mark; Fred Espenak; Ken Willcox (2008). Totality: Eclipses of the Sun. Oxford University Press. ISBN 0-19-953209-5. 
  5. ^ Synodic Month definition Eric W. Weisstein

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Fortnight — Please support Wikipedia.
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BBC News

BBC News
Wed, 20 Aug 2014 23:49:53 -0700

An average of around one person a fortnight travels from the UK to Switzerland to receive help to take their own life, a study has suggested. Researchers from Zurich University said 126 Britons visited the country's clinics to die between 2008 and 2012.


Thu, 21 Aug 2014 07:48:45 -0700

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STV Glasgow

STV Glasgow
Thu, 21 Aug 2014 08:56:15 -0700

Meanwhile, central defender, Ben Richards-Everton has tweeted to say he's delighted to sign for Partick Thistle. He's been on trial with the club and featured in the pre-season win against Sunderland.

Leamington Courier

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Wed, 20 Aug 2014 01:55:51 -0700

All Connells estate agency offices in the Central Region are holding a dedicated 'Help to Buy Fortnight' from August 16 to 30, designed to help buyers looking to use the scheme. Following the success of its 'Help to Buy Fortnight' last year, Connells ...
Scotland Food and Drink (press release)
Wed, 20 Aug 2014 04:01:33 -0700

We're looking for short videos of around two minutes in length which can include anything from regional specialities, seasonal produce and new products to Fortnight events you are participating in or even cookery demos. So, if you have any video ...
Pro Bono Australia
Tue, 19 Aug 2014 20:22:30 -0700

This is an exciting and challenging opportunity for a highly skilled and experienced fundraising professional. St Anthony's has a long history of delivering services to the local community and has had strong support from donors for many decades ...

Economic Times

Business Standard
Tue, 19 Aug 2014 02:41:06 -0700

The Petroleum Planning and Analysis Cell (PPAC) under the Ministry of Petroleum and Natural Gas has reviewed international prices of crude oil and petroleum products during the 1st fortnight of August 2014. Accordingly, the under-recovery on High Speed ...

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Mon, 18 Aug 2014 23:37:36 -0700

In just two weeks' time, general managers from across the region will gather in Dubai for the fifth edition of the Hotelier Middle East Great GM Debate. Taking place at Jumeirah Beach Hotel on September 2, the event will feature four major panel ...

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