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A fortnight is a unit of time equal to 14 days (2 weeks). The word derives from the Template:Lang-ang, meaning "fourteen nights". Fortnight and fortnightly are commonly used words in the English-speaking world. Some wages, salaries, and social security benefits are paid on a fortnightly basis; however in North America it is far more common to use the term biweekly. Note that neither of these terms should not be confused with semimonthly, which results in 24 pay periods (12 months × 2), instead of the 26 (52 weeks ÷ 2) of fortnightly/biweekly.

Astronomy

For more information see eclipse cycle.

In astronomy, a fortnight is half a synodic month, the mean time between a full moon and a new moon (and vice versa). This is equal to 14.77 days.

In other languages

In many languages there is no single word for a two-week period, and the equivalent terms "two weeks", "14 days" or "15 days" (counting inclusively) have to be used.

• Celtic languages: 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 is coicís.
• Similarly in Greek the term δεκαπενθήμερο (dekapenthímero), meaning "15 days", is used.
• The Hindu calendar uses the Sanskrit word "paksha", meaning one half of a lunar month, which is between 14 and 15 solar days.
• In Romance languages there are the terms quincena (or quince días) in Galician and Spanish, quinzena in Catalan and Portuguese, quindicina in Italian, quinze jours or quinzaine in French, and chenzinǎ in Romanian, all meaning "15 days"; there are also the terms bisettimanale in Italian, bisemanal in Spanish, bissemanal in Portuguese, bisetmanal in Catalan, bihebdomadaire in French, and bisǎptǎmânal in Romanian, that literally mean "biweekly".
• Semitic languages have a special "doubling suffix". When added at the end of the word for "week" it changes the meaning to "two weeks". In Hebrew, the single-word שבועיים (shvu′ayim) means exactly "two weeks". Also in Arabic, by adding the common dual suffix to the word for "week", أسبوع, the form أسبوعين (usbu′ayn), meaning "two weeks", is formed.
• Slavic languages: in Czech the terms čtrnáctidenní and dvoutýdenní have the same meaning as "fortnight".

See also

• FFF system
• Half-month
• Sennight

References

1. "Fortnight". The Concise Oxford Dictionary (5th Edition ed.). 1964. p. 480. {{cite news}}: |edition= has extra text (help)
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. Steven Bragg (22 June 2010). "What is the difference between a semimonthly and biweekly payroll?". AccountingTools. Retrieved 23 November 2015. Semimonthly is paid 24 times per year, and the biweekly is paid 26 times per year.
5. Littmann, Mark; Fred Espenak; Ken Willcox (2008). Totality: Eclipses of the Sun. Oxford University Press. ISBN 0-19-953209-5.
6. Synodic Month definition Eric W. Weisstein

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Fortnight Band

Fortnight was formed 4.543 billion years ago when the universe began. Fortnight has always been. Fortnight will always be.

Fortnight is: Bun - Vocals/Bass J - Lead Guitar Dan - Rhythm Guitar/Industrial Percussion Audin - Trumpet/Rapper

Fortnight's first track "A one second silent audio clip" Was released August 19, 2015 and was a hit world wide. It was followed up by "Face the Sun" Featuring the first solo Audin the rapper it inspired millions to go outside and blind themselves. It was then seen and trio'd by "My Name" "The Plight of Man" "The Man"

1. Fortnightofficial.bandcamp.com
2. http://fortnightofficial.bandcamp.com/album/a-one-second-silent-audio-clip
3. http://fortnightofficial.bandcamp.com/album/face-the-sun-single
4. ^ http://fortnightofficial.bandcamp.com/track/my-name-instrumental
5. http://fortnightofficial.bandcamp.com/track/the-moon-instrumental

• Units of time