Meta tags:

Headings (most frequently used words):

year, cycle, tabular, islamic, calendar, contents, intercalary, schemes, see, also, references, literature, external, links, 30, 120,

Text of the page (most frequently used words):
the (100), #calendar (47), year (46), and (32), islamic (28), cycle (20), days (20), leap (15), day (15), #tabular (14), months (12), edit (12), calendars (10), based (10), years (10), this (9), hijri (9), astronomical (9), lunar (9), for (9), used (8), wikipedia (7), was (6), link (6), from (6), long (6), solar (6), online (6), algorithm (6), has (6), other (6), use (5), page (5), with (5), short (5), era (5), gregorian (5), dhu (5), rabi (5), university (5), dates (5), that (5), century (5), muslims (5), month (5), are (5), remainder (5), contents (4), search (4), last (4), pages (4), articles (4), references (4), anno (4), common (4), jumada (4), links (4), cambridge (4), books (4), third (4), second (4), kuwaiti (4), tables (4), microsoft (4), moon (4), early (4), intercalary (4), mean (4), date (4), ibn (4), hide (4), move (4), sidebar (4), toggle (3), view (3), additional (3), using (3), displaying (3), descriptions (3), redirect (3), targets (3), all (3), arabic (3), english (3), regnal (3), julian (3), arithmetical (3), edward (3), calculations (3), edition (3), science (3), explanatory (3), supplement (3), almanac (3), van (3), section (3), see (3), also (3), 120 (3), end (3), same (3), per (3), between (3), there (3), observation (3), have (3), number (3), one (3), 354 (3), rule (3), when (3), schemes (3), islam (3), jihadism (3), hadith (3), muhammad (3), history (3), tools (3), main (3), languages (2), table (2), contact (2), about (2), privacy (2), policy (2), text (2), available (2), terms (2), may (2), non (2), 2026 (2), categories (2), needing (2), september (2), 2025 (2), description (2), wikidata (2), terminology (2), retrieved (2), index (2), discworld (2), vietnamese (2), sexagenary (2), system (2), korean (2), japanese (2), chinese (2), assyrian (2), systems (2), new (2), numbering (2), fixed (2), permanent (2), time (2), proleptic (2), week (2), age (2), macedonian (2), germanic (2), historical (2), ethiopian (2), variants (2), slavic (2), faith (2), sambat (2), hijja (2), shawwal (2), ramadan (2), sha (2), ban (2), rajab (2), safar (2), muharram (2), converter (2), western (2), external (2), reingold (2), nachum (2), dershowitz (2), press (2), calendrical (2), kenneth (2), seidelmann (2), mill (2), valley (2), sections (2), ephemeris (2), calendrier (2), society (2), literature (2), leiden (2), brill (2), vol (2), dutch (2), muslim (2), asia (2), gent (2), can (2), called (2), standard (2), which (2), since (2), 8th (2), 2008 (2), sql (2), only (2), most (2), now (2), into (2), thus (2), resulting (2), length (2), cycles (2), east (2), than (2), each (2), exactly (2), weeks (2), 29d (2), 12h (2), muḥammad (2), convert (2), determined (2), make (2), predictable (2), 53056 (2), six (2), 631 (2), 360 (2), how (2), community (2), version (2), added (2), whenever (2), exceeds (2), half (2), then (2), except (2), its (2), learn (2), help (2), sources (2), citations (2), sun (2), too (2), numbered (2), variation (2), information (2), portal (2), quran (2), related (2), prayer (2), shia (2), sunni (2), generation (2), prophets (2), appearance (2), upload (2), file (2), changes (2), read (2), article (2), log (2), create (2), account (2), donate (2), menu (2), add, topic, mobile, cookie, statement, statistics, developers, code, conduct, legal, safety, contacts, disclaimers, under, apply, site, you, agree, registered, trademark, profit, organization, wikimedia, foundation, inc, creative, commons, attribution, sharealike, license, rendered, parsoid, edited, april, utc, hidden, via, module, annotated, containing, language, different, dawoodi, bohras, https, org, php, title, tabular_islamic_calendar, oldid, 1350610030, category, list, star, trek, stardate, lord, rings, middle, earth, dungeons, dragons, greyhawk, fictional, kali, dvapara, treta, satya, yugas, spanish, seleucid, samvatsara, nirayana, british, discordian, imperial, before, present, mundi, martyrum, lucis, domini, anka, urbe, condita, zero, name, epoch, naming, wall, perpetual, electronic, displays, applications, world, symmetry454, positivist, pax, international, hanke, henry, reform, proposals, unix, pataphysical, historiographical, iso, anthropological, holocene, fiscal, dreamspell, martian, darian, specialty, turkmen, swedish, soviet, rumi, roman, rapa, nui, qumran, pisan, pentecontad, muisca, tzolkʼin, haabʼ, maya, juche, inca, greek, french, republican, florentine, enoch, egyptian, coligny, culāsakaraj, cham, celtic, cappadocian, byzantine, bulgar, babylonian, xiuhpōhualli, tōnalpōhualli, aztec, attic, arabian, saints, eastern, orthodox, liturgical, revised, eritrean, coptic, christian, round, count, mesoamerican, runic, types, zulu, yoruba, xhosa, wicca, vikram, samvat, tulu, tripuri, tibetan, thai, tamil, sundanese, native, sesotho, somali, shona, romanian, punjabi, odia, nisg̱a, nanakshahi, yele, nepal, nepali, mongolian, mizo, lushai, minguo, melanau, manipuri, meitei, mandaean, malayalam, maithili, lithuanian, kurdish, javanese, jain, fasli, irish, zoroastrian, jalali, iranian, igbo, hmong, georgian, heathen, burmese, borana, berber, bangladeshi, saka, pawukon, bali, baháʼí, assamese, armenian, akan, limited, śaka, hindu, hebrew, buddhist, bengali, wide, lunisolar, alavi, taiyebi, includes, four, known, 2018, chapters, ultimate, richards, urban, eds, 2013, 585, 624, jean, meeus, jewish, moslem, richmond, willmann, bell, 1998, chapter, algorithms, leroy, doggett, 1992, 575, 608, revision, american, nautical, denis, savoie, calcul, des, concordances, entre, musulman, grégorien, julien, 1991, observations, travaux, société, astronomique, france, hatcher, generalized, equations, numbers, 1985, 151, 155, quarterly, journal, royal, marcus, gossler, basisformeln, zur, programmierten, umrechnung, einiger, astronomischer, kalendertypen, 1980, 191, 194, 301, astronomische, nachrichten, gerret, pieter, rouffaer, hague, martinus, nijhoff, 1896, 1905, 445, 460, encyclopaedie, nederlandsch, indië, tijdrekening, ian, proudfoot, 2006, handbook, oriental, studies, old, southeast, robert, harry, december, 2019, mathematical, institute, easily, demonstrated, scheme, type, iia, been, 2020, november, utrecht, converters, kriegel, alex, trukhnov, boris, indianapolis, wiley, 383, bible, archived, january, 2010, original, com, server, 2000, 144768713, oclc, 9780521885409, isbn, official, iran, indonesia, 20th, reset, every, omitting, equal, indies, though, less, accurate, popular, due, fact, weekdays, fall, words, 405, 21875, were, ottoman, empire, south, contains, 2835, giving, 53125, 45m, ḥabash, ḥāsib, elias, nisibis, bīrūnī, fāṭimid, bohorā, ajdābī, ṭayyibī, ismāʿīlī, fattūḥ, jamāʾirī, seville, fazārī, alfonsine, toledan, battānī, khwārizmī, taqī, dīn, maʾruf, ulugh, beg, kūshyār, labbān, gap, till, next, origin, usage, overview, various, correspondence, defined, advance, algorithmic, actual, attempt, conversions, somewhat, claims, created, statistical, analysis, data, according, rob, simply, implementation, 11th, kuwait, windows, plus, approximately, takes, full, 44m, ismaili, tayyebi, delays, three, seventh, tenth, their, another, where, addition, fourth, postponed, replaces, sixth, equals, form, noting, average, first, reducing, would, reduced, remove, message, please, unsourced, material, challenged, jstor, scholar, newspapers, news, find, removed, adding, reliable, improve, needs, more, virtually, religious, purposes, such, accounting, uniform, motions, factors, approximation, because, predicted, occur, two, late, umm, qura, 355, odd, even, 12th, final, hijjah, but, rules, rather, developed, astronomers, hijra, provide, base, calculating, positions, planets, historians, like, example, misri, fatimid, altaqwim, alhijriu, almujadwal, romanized, التقويم, الهجري, المجدول, outline, glossary, symbols, pacifism, peace, military, laws, deobandi, salafi, jihad, islamophobia, islamism, religions, golden, criticism, apostasy, topics, women, social, welfare, concubinage, slavery, lgbtq, sexuality, proselytizing, politics, poetry, philosophy, mysticism, music, multiculturalism, mosque, moral, teachings, madrasa, liberalism, holidays, halal, friday, finance, feminism, exorcism, ethics, education, economics, ibadi, denominations, diaspora, demographics, democracy, circumcision, children, censorship, cats, association, football, art, animals, academics, culture, relations, spread, imamate, caliphate, rashidun, succession, companions, salaf, ahl, bayt, jahiliyyah, timeline, law, sharia, jurisprudence, fiqh, poems, mathnawi, stories, qisas, anbiya, creed, aqidah, ijtihad, exegesis, tafsir, sirah, qudsi, sunnah, foundations, texts, pilgrimage, fasting, almsgiving, profession, practices, hell, heaven, resurrection, predestination, barzakh, judgement, holy, angels, god, oneness, beliefs, part, series, method, 1448, thani, october, today, refresh, free, encyclopedia, item, projects, printable, download, pdf, print, export, switch, legacy, parser, get, shortened, url, cite, what, here, general, actions, talk, simple, русский, ਪੰਜਾਬੀ, español, বাংলা, العربية, subsection, top, personal, special, recent, contribute, random, current, events, navigation, jump, content,

Text of the page (random words):
tabular islamic calendar wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 intercalary schemes toggle intercalary schemes subsection 1 1 30 year cycle 1 2 8 year cycle 1 3 120 year cycle 2 see also 3 references 4 literature 5 external links toggle the table of contents tabular islamic calendar 6 languages العربية বাংলা español ਪੰਜਾਬੀ русский simple english edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia rule based variation of the islamic calendar for other calendars used by muslims see islamic calendar and solar hijri calendar today s date refresh system date gregorian calendar 6 october ad 2026 islamic calendar 23 rabi al thani ah 1448 using tabular method months of the islamic calendar muharram safar rabi i rabi ii jumada i jumada ii rajab sha ban ramadan shawwal dhu l qa da dhu l hijja v t e part of a series on islam beliefs oneness of god angels holy books prophets judgement day barzakh predestination resurrection heaven hell practices profession of faith prayer almsgiving fasting pilgrimage texts foundations quran sunnah hadith hadith qudsi sirah tafsir exegesis ijtihad aqidah creed qisas al anbiya stories of the prophets mathnawi poems fiqh jurisprudence sharia law history timeline jahiliyyah muhammad ahl al bayt early muslims salaf companions second generation third generation succession to muhammad rashidun caliphate imamate spread of islam shia sunni relations culture and society academics animals art association football calendar cats censorship children circumcision democracy demographics diaspora denominations sunni shia ibadi economics education ethics exorcism feminism finance friday prayer halal holidays liberalism madrasa moral teachings mosque multiculturalism music mysticism philosophy poetry politics proselytizing science sexuality lgbtq slavery concubinage social welfare women related topics arabic apostasy criticism muhammad quran hadith golden age other religions islamism islamophobia jihad jihadism salafi jihadism deobandi jihadism military laws peace pacifism symbols muslims glossary index outline islam portal v t e the tabular islamic calendar arabic التقويم الهجري المجدول romanized altaqwim alhijriu almujadwal is a rule based variation of the lunar hijri calendar it has the same numbering of years and months but the months are determined by arithmetical rules rather than by observation or astronomical calculations it was developed by early muslim astronomers of the second hijra century the 8th century of the common era to provide a predictable time base for calculating the positions of the moon sun and planets it is now used by historians to convert an islamic date into a western calendar when no other information like the day of the week is available its calendar era is the hijri year an example is the fatimid or misri calendar each year has 12 months and 354 or 355 days the odd numbered months have 30 days and the even numbered months have 29 days except in a leap year when the 12th and final month dhu al hijjah has 30 days virtually all muslims use an observation based calendar for religious purposes such as the umm al qura calendar accounting for the non uniform motions of the sun and the moon and other factors and use the tabular calendar only for approximation because dates predicted by the tabular islamic calendar can occur one or two days too early or too late 1 intercalary schemes edit 30 year cycle edit this section needs more citations please help improve this section by adding citations to reliable sources unsourced material may be challenged and removed find sources tabular islamic calendar news newspapers books scholar jstor september 2025 learn how and when to remove this message in its most common form there are 11 leap years in a 30 year cycle noting that the average year has 354 11 30 days and a common year has 354 days at the end of the first year of the 30 year cycle the remainder is 11 30 day whenever the remainder exceeds a half day 15 30 day then a leap day is added to that year reducing the remainder by one day thus at the end of the second year the remainder would be 22 30 day which is reduced to 8 30 day by a leap day using this rule the leap years are year number 2 5 7 10 13 16 18 21 24 26 and 29 of the 30 year cycle if leap days are added whenever the remainder equals or exceeds a half day then all leap years are the same except 15 replaces 16 as the sixth long year per cycle the ismaili tayyebi community delays three leap days by one year the third to year 8 the seventh to year 19 and the tenth to year 27 in their 30 year cycle there is another version where in addition the fourth leap day is postponed to year 11 and the last leap day is in the last year of the 30 year cycle the mean number of days per month in the 30 year cycle is 29 53056 days or 29d 12h 44m six months of 29 days and six with 30 days plus 11 days of the leap years 29 days 6 months 30 days 6 months 30 years 11 leap days 10 631 days and 10 631 360 29 53056 360 is number of months in 30 years and this is approximately how long it takes for the moon to make full lunar cycle microsoft s kuwaiti algorithm is used in windows to convert between gregorian calendar dates and islamic calendar dates 2 3 there is no fixed correspondence defined in advance between the algorithmic gregorian solar calendar and the islamic lunar calendar determined by actual observation as an attempt to make conversions between the calendars somewhat predictable microsoft claims to have created this algorithm based on statistical analysis of historical data from kuwait according to rob van gent the so called kuwaiti algorithm is simply an implementation of the standard tabular islamic calendar algorithm used in islamic astronomical tables since the 11th century 4 overview of various 30 year leap cycles origin or usage long lunar years n th 30 gap till next long year 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 kūshyār ibn labbān ulugh beg taqī ad dīn muḥammad ibn maʾruf 2 5 7 10 13 15 18 21 24 26 29 3 2 3 3 2 3 3 3 2 3 3 al fazārī al khwārizmī al battānī toledan tables alfonsine tables microsoft kuwaiti algorithm 2 5 7 10 13 16 18 21 24 26 29 3 2 3 3 3 2 3 3 2 3 3 muḥammad ibn fattūḥ al jamāʾirī of seville 2 5 8 10 13 16 18 21 24 26 29 3 3 2 3 3 2 3 3 2 3 3 fāṭimid ismāʿīlī ṭayyibī bohorā calendar ibn al ajdābī 2 5 8 10 13 16 19 21 24 27 29 3 3 2 3 3 3 2 3 3 2 3 ḥabash al ḥāsib al bīrūnī elias of nisibis 2 5 8 11 13 16 19 21 24 27 30 3 3 3 2 3 3 2 3 3 3 2 8 year cycle edit tabular islamic calendars based on an 8 year cycle with 2 5 and 8 as leap years were also used in the ottoman empire and in south east asia 5 the cycle contains 96 months in 2835 days giving a mean month length of 29 53125 days or 29d 12h 45m though less accurate than the tabular calendars based on a 30 year cycle it was popular due to the fact that in each cycle the weekdays fall on the same calendar date in other words the 8 year cycle is exactly 405 weeks long resulting in a mean of exactly 4 21875 weeks per month 120 year cycle edit in the dutch east indies now indonesia into the early 20th century the 8 year cycle was reset every 120 years by omitting the intercalary day at the end of the last year thus resulting in a mean month length equal with that used in the 30 year cycles 6 see also edit hijri year era in the islamic calendar pages displaying short descriptions of redirect targets lunar hijri calendar lunar calendar used by most muslims pages displaying short descriptions of redirect targets solar hijri calendar official calendar of iran lunar calendar calendar based only on the moon references edit dershowitz nachum reingold edward m 2008 6 the islamic calendar calendrical calculations third ed cambridge cambridge university press p 82 87 isbn 9780521885409 oclc 144768713 hijri dates in sql server 2000 microsoft com archived from the original on january 8 2010 kriegel alex trukhnov boris m 2008 sql bible indianapolis in wiley p 383 robert harry van gent december 2019 online calendar converters based on the tabular islamic calendar mathematical institute utrecht university retrieved 15 november 2020 it can easily be demonstrated that the so called kuwaiti algorithm was based on the standard arithmetical scheme type iia which has been used in islamic astronomical tables since the 8th century ce ian proudfoot old muslim calendars of southeast asia leiden brill 2006 handbook of oriental studies section 3 vol 17 gerret pieter rouffaer tijdrekening in encyclopaedie van nederlandsch indië the hague leiden martinus nijhoff e j brill 1896 1905 vol iv pp 445 460 in dutch literature edit marcus gossler basisformeln zur programmierten umrechnung einiger astronomischer kalendertypen astronomische nachrichten 301 1980 191 194 online link d a hatcher generalized equations for julian day numbers and calendar dates quarterly journal of the royal astronomical society 26 1985 151 155 online link denis savoie calcul des concordances entre calendrier musulman et calendrier grégorien ou julien observations et travaux société astronomique de france 26 1991 12 19 online link leroy e doggett calendars in p kenneth seidelmann ed explanatory supplement to the astronomical almanac a revision to the explanatory supplement to the astronomical ephemeris and the american ephemeris and nautical almanac mill valley ca university science books 1992 pp 575 608 cf sections 12 4 12 93 for the islamic calendar online link jean meeus jewish and moslem calendars in astronomical algorithms second edition richmond willmann bell 1998 chapter 9 edward g richards calendars in s e urban p kenneth seidelmann eds explanatory supplement to the astronomical almanac third edition mill valley ca university science books 2013 pp 585 624 cf sections 15 6 15 11 for the islamic calendar edward m reingold nachum dershowitz calendrical calculations the ultimate edition cambridge cambridge university press 2018 chapters 7 18 3 external links edit islamic western calendar converter based on the arithmetical or tabular calendar includes four known variants online alavi taiyebi calendar calendar converter v t e months of the islamic calendar ah muharram safar rabi i rabi ii jumada i jumada ii rajab sha ban ramadan shawwal dhu l qa da dhu l hijja v t e calendars systems lunar lunisolar solar in wide use bengali buddhist chinese ethiopian gregorian hebrew hindu islamic śaka solar hijri in limited use akan armenian assamese assyrian baháʼí bali pawukon saka bangladeshi berber borana burmese germanic heathen georgian hmong igbo iranian jalali zoroastrian irish islamic fasli tabular jain japanese javanese korean kurdish lithuanian maithili malayalam mandaean manipuri meitei melanau minguo mizo lushai mongolian nepali nepal sambat yele sambat nanakshahi nisg̱a a odia punjabi romanian shona somali sesotho slavic slavic native faith macedonian sundanese tamil thai lunar solar tibetan tripuri tulu vietnamese vikram samvat wicca xhosa yoruba zulu types runic mesoamerican long count calendar round christian variants coptic ethiopian and eritrean julian revised liturgical year eastern orthodox saints historical arabian attic aztec tōnalpōhualli xiuhpōhualli babylonian bulgar byzantine cappadocian celtic cham culāsakaraj coligny egyptian enoch florentine french republican germanic greek inca juche macedonian maya haabʼ tzolkʼin muisca pentecontad pisan qumran rapa nui roman rumi sexagenary soviet swedish turkmen by specialty astronomical darian martian dreamspell new age fiscal holocene anthropological iso week proleptic gregorian proleptic julian historiographical pataphysical unix time reform proposals hanke henry permanent international fixed pax positivist symmetry454 world displays and applications electronic perpetual wall year naming and numbering terminology era epoch leap year new year regnal name regnal year year zero systems ab urbe condita anka year anno domini common era anno lucis anno martyrum anno mundi assyrian before present chinese imperial discordian english and british regnal year hijri year japanese korean nirayana system samvatsara seleucid sexagenary spanish yugas satya treta dvapara kali vietnamese fictional discworld discworld greyhawk dungeons dragons middle earth the lord of the rings stardate star trek list of calendars category retrieved from https en wikipedia org w index php title tabular_islamic_calendar oldid 1350610030 categories islamic calendar dawoodi bohras islamic terminology hidden categories articles with short description short description is different from wikidata articles containing arabic language text articles needing additional references from september 2025 all articles needing additional references pages displaying short descriptions of redirect targets via module annotated link this page was last edited on 22 april 2026 at 23 02 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents tabular islamic calendar 6 languages add topic