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In many languages, there is no single word for a two-week period, and the equivalent terms "two weeks", "14 days", or "15 days" (
107:
period between a full moon and a new moon (and vice versa). This is equal to 14.07 days. It gives rise to a lunar fortnightly
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453:(seven-night), an old word for the week, was still in use in the early 19th century, to judge from
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142:, meaning "15 nights", is used. This is in keeping with the Welsh term for a week, which is
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317:". When added at the end of the word for "week" it changes the meaning to "two weeks". In
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This article is about the unit of time measurement. For other uses, see
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77:" (or "fourteen days", since the Anglo-Saxons counted by nights).
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648:
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259:, all meaning "a grouping of 15"; there are also the terms
55:
654:
International Earth
Rotation and Reference Systems Service
541:"Do You Know How to Say Fortnight in Different Languages?"
1199:
51:
584:
467:Littmann, Mark; Fred Espenak; Ken Willcox (2008).
1325:
570:
375:is used in relation to "biweekly, two weeks".
118:
577:
563:
367:have the same meaning as "fortnight". In
176:word पक्ष "pakṣa", meaning one half of a
1108:International Commission on Stratigraphy
180:, which is between 14 and 15 solar days.
460:
34:Not to be confused with the video game
14:
1326:
407:), Roman day for the midst of a month.
80:
558:
495:
329:) means exactly "two weeks". Also in
510:
24:
432:(5th ed.). 1964. p. 480.
349:), meaning "two weeks", is formed.
25:
1345:
828:Discrete time and continuous time
307:, that literally mean "biweekly".
753:
747:
901:History of timekeeping devices
533:
504:
489:
436:
421:
165:), meaning "15 days", is used.
50:is a unit of time equal to 14
13:
1:
469:Totality: Eclipses of the Sun
430:The Concise Oxford Dictionary
414:
103:, which is equivalent to the
58:). The word derives from the
545:www.indifferentlanguages.com
70:
7:
848:Gravitational time dilation
684:Barycentric Coordinate Time
379:
10:
1350:
704:Geocentric Coordinate Time
689:Barycentric Dynamical Time
627:Coordinated Universal Time
498:"Synodic Month definition"
161:, the term δεκαπενθήμερο (
84:
33:
29:Fortnight (disambiguation)
26:
1258:
1149:
1116:
1090:
971:
871:
858:Time-translation symmetry
788:
762:
745:
669:International Atomic Time
619:
596:
513:"BBC Wales - Catchphrase"
337:to the word for "week",
119:Analogs and translations
43:Time period of two weeks
1118:Astronomical chronology
1091:Archaeology and geology
798:Absolute space and time
714:IERS Reference Meridian
709:International Date Line
620:International standards
511:BBC (16 October 2014).
473:Oxford University Press
333:, by adding the common
64:
1077:Weekday determination
963:Sundial markup schema
146:("eight nights"). In
85:Further information:
1098:Chronological dating
838:Theory of relativity
699:Daylight saving time
187:there are the terms
125:counting inclusively
1308:Time value of money
1103:Geologic time scale
958:History of sundials
823:Cosmological decade
775:Greenwich Mean Time
606:Orders of magnitude
496:Weisstein, Eric W.
127:) have to be used.
101:lunar synodic month
81:Astronomy and tides
1283:Mental chronometry
911:Marine chronometer
763:Obsolete standards
528:Wythnos is a week.
321:, the single-word
1321:
1320:
1131:Nuclear timescale
813:Continuous signal
482:978-0-19-953209-4
313:have a "doubling
311:Semitic languages
185:Romance languages
113:Long-period tides
109:tidal constituent
16:(Redirected from
1341:
1022:Dominical letter
953:Equation of time
916:Marine sandglass
757:
751:
729:Terrestrial Time
586:Time measurement
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353:Slavic languages
132:Celtic languages
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65:fēowertīene niht
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818:Coordinate time
790:Time in physics
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97:lunar fortnight
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1303:Time metrology
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1259:Related topics
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780:Prime meridian
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770:Ephemeris time
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739:180th meridian
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170:Hindu calendar
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163:dekapenthímero
157:Similarly, in
155:
150:, the term is
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1334:Units of time
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1152:units of time
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1141:Sidereal time
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1126:Galactic year
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1082:Weekday names
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1072:Tropical year
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1037:Intercalation
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843:Time dilation
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679:24-hour clock
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674:12-hour clock
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428:"Fortnight".
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361:čtrnáctidenní
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261:bisettimanale
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87:Eclipse cycle
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38:
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19:
1288:Decimal time
1209:
1017:Astronomical
896:Complication
891:Atomic clock
544:
535:
527:
520:. Retrieved
516:
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438:
429:
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360:
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338:
326:
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301:bisǎptǎmânal
300:
292:
284:
276:
268:
260:
252:
242:
238:quinze jours
236:
228:
220:
216:
208:
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162:
151:
143:
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122:
96:
90:
47:
45:
35:
1298:System time
1293:Metric time
1012:Solar Hijri
938:Water clock
921:Radio clock
853:Time domain
833:Proper time
719:Leap second
601:Chronometry
522:18 November
457:'s letters.
455:Jane Austen
371:, the term
365:dvoutýdenní
341:, the form
335:dual suffix
217:quinze dias
209:quinze dies
193:quince días
178:lunar month
138:, the term
68:, meaning "
60:Old English
18:Fortnightly
1313:Timekeeper
1266:Chronology
1250:Millennium
1136:Precession
1042:Julian day
863:T-symmetry
724:Solar time
694:Civil time
415:References
391:Half-month
386:FFF system
359:the terms
285:bisetmanal
281:Portuguese
277:bissemanal
229:quindicina
225:Portuguese
99:is half a
1210:Fortnight
1057:Lunisolar
1047:Leap year
981:Gregorian
931:stopwatch
906:Hourglass
886:Astrarium
803:Spacetime
734:Time zone
611:Metrology
590:standards
517:BBC Wales
373:два тижні
369:Ukrainian
327:shvu′ayim
269:bisemanal
244:quinzaine
172:uses the
140:pythefnos
93:astronomy
71:fourteen
48:fortnight
1328:Category
1271:Duration
1245:Saeculum
1225:Olympiad
1067:Solstice
996:Holocene
973:Calendar
873:Horology
664:ISO 8601
659:ISO 31-1
451:se'night
447:sennight
396:Sennight
380:See also
347:usbu′ayn
305:Romanian
257:Romanian
253:chenzină
221:quinzena
205:quinzena
197:Galician
189:quincena
174:Sanskrit
37:Fortnite
1240:Century
1230:Lustrum
1160:Instant
1032:Equinox
1001:Islamic
943:Sundial
808:Chronon
443:Senight
343:أسبوعين
323:שבועיים
289:Catalan
273:Spanish
265:Italian
233:Italian
213:Catalan
201:Spanish
144:wythnos
1235:Decade
1190:Moment
1185:Minute
1180:Second
1150:Other
1007:Julian
986:Hebrew
632:offset
479:
331:Arabic
319:Hebrew
315:suffix
299:, and
297:French
251:, and
249:French
152:coicís
111:(see:
73:nights
1276:music
1215:Month
1175:Jiffy
1170:Shake
1165:Flick
1062:Solar
1052:Lunar
1027:Epact
991:Hindu
926:Watch
881:Clock
357:Czech
355:: in
339:أسبوع
195:) in
159:Greek
148:Irish
136:Welsh
134:: in
62:term
56:weeks
54:(two
1220:Year
1205:Week
1195:Hour
649:DUT1
588:and
524:2016
477:ISBN
405:idus
401:Ides
363:and
215:and
199:and
191:(or
168:The
105:mean
95:, a
52:days
1200:Day
449:or
303:in
295:in
287:in
279:in
271:in
263:in
255:in
247:in
241:or
231:in
223:in
219:or
211:in
207:or
183:In
115:).
91:In
1330::
644:ΔT
639:UT
543:.
526:.
515:.
475:.
471:.
445:,
291:,
283:,
275:,
267:,
235:,
227:,
203:,
46:A
578:e
571:t
564:v
547:.
500:.
485:.
403:(
345:(
325:(
154:.
40:.
31:.
20:)
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