Knowledge

International Date Line

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3259: 1552:, travels eastward around the world. He had bet with his friends that he could do it in 80 days. To win the wager, Fogg must return by 8:45 p.m. on Saturday, 21 December 1872. However, the journey suffers a series of delays and when Fogg reaches London, it is 8:50 p.m. on Friday, 20 December, although he believes it is Saturday, 21 December and that he has lost the wager by a margin of only five minutes. The next day, however, it is revealed that the day is Saturday, not Sunday, and Fogg arrives at his club just in time to win the bet. Verne explains: 3253: 142: 1304: 703: 548: 285: 43: 209: 878: 843:
approach is consistent with the principle of national and nautical time zones: the islands of eastern Kiribati are actually "islands" of Asian date (west side of IDL) in a sea of American date (east side of IDL). Similarly, the western Aleutian Islands are islands of American date in a sea of Asian date.
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In journeying eastward he had gone towards the sun, and the days therefore diminished for him as many times four minutes as he crossed degrees in this direction. There are three hundred and sixty degrees on the circumference of the earth; and these three hundred and sixty degrees, multiplied by four
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planned to observe Sabbath on Sunday after Samoa's crossing the IDL in December 2011, but SDA groups in Samatau village and other places (approximately 300 members) decided to accept the IDL adjustment and observe the Sabbath on Saturday. Debate continues within the Seventh-day Adventist community in
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below). The current HMNAO map does not draw the IDL in conformity with recent shifts in the IDL; it draws a line virtually identical to that adopted by the UK's Hydrographic Office about 1900. Instead, HMNAO labels island groups with their time zones, which do reflect the most recent IDL shifts. This
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A problem with the general rule above arises in certain Christian churches that solemnly observe a Sabbath day as a particular day of the week, when those churches are located in countries near the IDL. Notwithstanding the difference in dates, the same sunrise happened over American Samoa as happens
1374:, depending upon which of the two is used by the particular church) as that date falls in countries located on either side of the IDL. Thus, whether it is Western Christmas or Orthodox Christmas, Christians in Samoa, immediately west of the IDL, will celebrate the holiday a day before Christians in 1265:, east of the IDL, from the United States. As a result, the country straddled the IDL. Government and commercial concerns on opposite sides of the line could only conduct routine business by radio or telephone on the four days of the week which were weekdays on both sides. To eliminate this anomaly, 1230:
with the rest of the Marshalls after World War II, the United States established a military installation there. Because of that, Kwajalein used the Hawaiian date, so was effectively east of the International Date Line (unlike the rest of the Marshalls). Kwajalein returned to the west side of the IDL
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the same; that causes questions to arise under religious law. Because the IDL is an arbitrary imposition, the question can arise as to which Saturday on either side of the IDL (or, more fundamentally, on either side of 180 degrees longitude) is the "real" Saturday. This issue (which also arises in
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The concept of an International Date Line in Jewish law is first mentioned by 12th-century decisors. But it was not until the introduction of improved transportation and communications systems in the 20th century that the question of an International Date Line truly became a question of practical
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on local Saturday. However, there is not unanimity as to how Jewish law reaches that conclusion. For this reason, some authorities rule that certain aspects of Sabbath observance are required on Sunday (in Japan and New Zealand) or Friday (in Hawaii and French Polynesia) in addition to Saturday.
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from its calendar. Because of this, Friday, 30 December 1994, was followed by Sunday, 1 January 1995. After the change, the IDL in effect moved eastwards to go around the entire country. Strictly legal, the 1917 nautical IDL convention is still valid. For example, when it is Monday on Kiribati's
858:), which it did agree to, "shall not interfere with the use of local or standard time where desirable". From this comes the utility and importance of UTC or "Z" ("Zulu") time: it permits a single universal reference for time that is valid for all points on the globe at the same moment. 1566:
International Date Line did not exist. If it did, he would have been made aware that it would be a day less than it used to be once he reached this line. Thus, the day he would add to his clock throughout his journey would be thoroughly removed upon crossing this imaginary line. But a
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Fogg had thought it was one day later than it actually was, because he had not accounted for this fact. During his journey, he had added a full day to his clock, at the rhythm of an hour per fifteen degrees, or four minutes per degree, as Verne writes. At the time, the concept of a
1528:(1994), in which the protagonist finds himself on a becalmed ship, with an island close at hand on the other side of the IDL. Unable to swim, the protagonist indulges in increasingly imaginative speculation regarding the physical, metaphysical and religious importance of the IDL. 1418:) observe Sunday because Tonga lies east of the 180° meridian. Sunday as observed in Tonga (west of the IDL, as with Kiribati, Samoa, and parts of Fiji and Tuvalu) is considered by the Seventh-day Adventist Church to be the same day as Saturday observed east of the IDL. 368:. In many places, the IDL follows the 180° meridian exactly. In other places, however, the IDL deviates east or west away from that meridian. These various deviations generally accommodate the political and/or economic affiliations of the affected areas. 1557:
minutes, gives precisely twenty-four hours — that is, the day unconsciously gained. In other words, while Phileas Fogg, going eastward, saw the sun pass the meridian eighty times, his friends in London only saw it pass the meridian seventy-nine times.
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For individuals crossing the IDL, the change of calendar date influences some aspects of practice under Jewish law. Yet other aspects depend on an individual's experience of sunsets and sunrises to count days, notwithstanding the calendar date.
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for provisions on Wednesday, 9 July 1522 (ship's time). However, the locals told them that it was actually Thursday, 10 July 1522. The crew was surprised, as they had recorded each day of the three-year journey without omission. Cardinal
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In theory, ships are supposed to adopt the standard time of a country if they are within its territorial waters within 12 nautical miles (14 mi; 22 km) of land, then revert to international time zones (15° wide pole-to-pole
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convention, and is not defined by international law. This has made it difficult for cartographers to agree on its precise course, and has allowed countries through whose waters it passes to move it at times for their convenience.
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Ceremonies aboard ships to mark a sailor's or passenger's first crossing of the Equator, as well as crossing the International Date Line, have been long-held traditions in navies and in other maritime services around the world.
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date line did exist since the U.K., India, and the U.S. had the same calendar with different local times, and he should have noticed when he arrived in the U.S. that the local date was not the same as in his diary (his servant
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have become its biggest trading partners, and also have large communities of expatriates. Being 21 hours behind made business difficult because having weekends on backward days meant only four days of the week were shared
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line and is an artificial construct of cartographers, as the precise course of the line in international waters is arbitrary. The IDL does not extend into Antarctica on the world time zone maps by the United States
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The Samoan Independent Seventh-day Adventist Church, which is not affiliated to the worldwide Seventh-day Adventist Church, has decided to continue worshiping on Saturday, after a six-day week at the end of 2011.
201: 1937: 1211:. For that reason, Tokelau crossed the IDL along with Samoa in 2011, albeit strictly speaking 1 hour later, as they did not do Summer Time (Daylight Saving Time in American English), which Samoa did then. 414:, which belong to Russia. It then bends southeast again to return to 180°. Thus, all of Russia is to the west of the IDL, and all of the United States is to the east except for the insular areas of 216:
Tuesday. (Times are approximate, since time zone boundaries generally do not exactly coincide with meridians. Night and day is illustrative only; daylight hours depend on latitude and time of year.)
2884: 1829: 2462: 1226:, passed from Spanish to German to Japanese control during the nineteenth and twentieth centuries. During that period it was west of the IDL. Although Kwajalein formally became part of the 1151:
was persuaded by American traders to adopt the American date (three hours behind California) to replace the former Asian date (four hours ahead of Japan). The change was made by repeating
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and deviating to pass around some territories and island groups. Crossing the date line eastbound decreases the date by one day, while crossing the date line westbound increases the date.
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and adjacent areas, so the Philippines decided to join its Asian neighbours on the west side of the IDL. To advance the calendar by one day, on 16 August 1844 the then governor-general
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Additionally, there are differences of opinion as to which day or days individual Jews traveling in the Pacific region away from established Jewish communities should observe Shabbat.
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from its calendar. Moreover, Kwajalein's work week was changed to Tuesday through Saturday to match the Hawaiian work week of Monday through Friday on the other side of the IDL.
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explicitly refused to propose or agree to any time zones, stating that they were outside its purview. The conference resolved that the Universal Day, midnight-to-midnight
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prayer appears to be local Friday everywhere in the world. The IDL is not a factor in the start and end of Islamic lunar months. These depend solely on sighting the
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A 1994 realignment of the IDL made Caroline Island one of the first points of land on Earth to reach January 1, 2000, on the calendar (UTC+14:00). As a result, this
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over Samoa a few minutes later, and the same sunset happens over Samoa as happened over American Samoa a few minutes earlier. In other words, the secular days are
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over the Tahitian Kingdom (which Tahitian nationalists had tried to fight off for two years of intense war with more than 1000 deaths) that the French commissioner
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However, this appears to be an unusual, or at least only a theoretical, position. Muslims in areas that would be affected, such as Alaska and Hawaii, in fact hold
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date line for purposes of Jewish law, at least in existing Jewish communities. For example, residents of the Jewish communities of Japan, New Zealand,
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are shown on the eastern side of the IDL, even though they were moved to the western side in 1845. Also placed to the east of the IDL were the
798: 2090: 2059: 2358:, having written it during the immediately preceding Congressional recess following notes on a single page that he actually used on Tuesday, 1207:
is a territory of New Zealand north of Samoa whose principal transportation and communications links with the rest of the world pass through
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predicted that circumnavigators would accumulate a one-day offset to the local date. This phenomenon was confirmed in 1522 at the end of the
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at a distance of 1.5 kilometres (0.93 mi) from each island at 168°58â€Č37″ W. It then bends considerably west of 180°, passing west of
2010: 1285:, started the year 2000 before any other country, a feature upon which the Kiribati government capitalized as a potential tourist draw. 2842: 1109:(Gregorian) in Europe. Since Alaska moved to the eastern side of the International Date Line, the date and time also moved back to 3:30 890: 441:, just north of the equator in the central Pacific Ocean (and ships at sea between 172.5°W and 180°), have the earliest time on Earth ( 2035: 107: 2715: 2142: 1907: 1460:
begin the morning after the crescent is sighted. That this day may vary in different parts of the world is well known in Islam. (See
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Executive documents printed by order of the House of Representatives during the second session of the fortieth Congress, 1867–'68
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that is offset from UTC by 12 hours is bisected by the nautical date line into two 7.5° gores that differ from UTC by ±12 hours.
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since it is not based on international law, but on national laws. These national zones do not extend into international waters.
2818: 1227: 894: 383:. (Wrangel Island lies directly on the meridian at 71°32â€ČN 180°0â€ČE, also noted as 71°32â€ČN 180°0â€ČW.) It then passes through the 86: 17: 2120: 805:
except where it is interrupted by territorial waters adjacent to land, forming gaps—it is a pole-to-pole dashed line. The 15°
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As a practical matter, the conventional International Date Line—or another line in the Pacific Ocean close to it—serves as a
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and the regent of the Tahitian Kingdom Paraita ordered that Tahiti had to follow the western hemisphere on 29 December 1846.
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A simplified illustration of the relation between date line, date and time of day. Each colour represents a different date.
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instead. As such, they introduced the date of the eastern hemisphere on the island. It was not until the ending of the
262:, the first successful circumnavigation. After sailing westward around the world from Spain, the expedition called at 3331: 2279: 2227: 1718: 1343: 847: 750: 674: 587: 324: 126: 3830: 2775: 732: 75: 1156: 846:
No international organization, nor any treaty between nations, has fixed the IDL drawn by cartographers: the 1884
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and moved the territory to the east side of the International Date Line. The transfer ceremony took place at 3:30
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Chronologie des événements politiques, sociaux et culturels de Tahiti et des archipels de la Polynésie française
3404: 2642: 2626: 1325: 976: 728: 569: 306: 259: 64: 3585: 271:, the Venetian ambassador to Spain, was the first European to give a correct explanation of the discrepancy. 2354:, vol. 11, Boston: 1875, pp. 181–349, p. 348. Sumner released the written version of his speech on Thursday, 1538:
The concept behind the IDL (though not the IDL itself, which did not yet exist) appears as a plot device in
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The IDL now passes between Samoa and American Samoa, which remains on the east (American) side of the line.
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After Mexico gained its independence from Spain on 27 September 1821, Philippine trade interests turned to
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Alaska was on the western side of the International Date Line, since Russian settlers reached Alaska from
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of 180° longitude, roughly down the middle of the Pacific Ocean, and halfway around the world from the
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Proceeding from north to south, the first deviation of the IDL from 180° is to pass to the east of
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islands, it is still Sunday in the surrounding ocean, though maps are usually not drawn this way.
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and thereby the location of the International Date Line are determined, one on land and adjacent
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Note that this map uses the opposite sign convention for time zones from that used in Knowledge.
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The areas that are the first to see the daylight of a new day vary by the season. Around the
2616: 1257:, just west of the IDL of the time. Upon independence in 1979, it acquired the claim to the 3874: 3601: 3515: 3341: 3202: 2385: 2031: 1608: 1400: 605: 353: 200: 2707: 1899: 8: 3869: 3811: 3606: 3461: 3326: 3278: 1415: 1052: 1044: 851: 453: 392: 213: 3147: 2389: 2373: 1446:
communities recognize the convention of the IDL. In particular, the day for holding the
838:(HMNAO). The IDL on modern CIA maps now reflects the most recent shifts in the IDL (see 778:, applicable only on land and adjacent territorial waters. This date line can be called 522:
The IDL then bends southwest to return to 180°. It follows that meridian until reaching
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South of Kiribati, the IDL returns westwards but remains east of 180°, passing between
396: 991:. The change also applied to the other remaining Spanish colonies in the Pacific: the 3879: 3634: 3499: 3316: 3035: 2622: 2523: 2393: 2271: 2261: 2223: 2173: 1920:
and click through to the individual stations' pages. With respect to Scott Base, see
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Plotting the Globe: Stories of Meridians, Parallels, and the International Date Line
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The Rise of Financial Capitalism: International Capital Markets in the Age of Reason
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construction determined by international agreement. It is the result of the 1917
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Generally, the Christian calendar and Christian churches recognize the IDL.
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Moving forward or back 24 hours generally also implies a one day date change.
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kept his watch set to London time, despite the clues from his surroundings).
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In 2011, Samoa shifted back to the west side of the IDL by removing Friday,
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neighbours for 323 years, 9 months and 2 weeks from Saturday, 16 March 1521
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As a consequence of the 1994 change, Kiribati's easternmost territory, the
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An illustrated manual for the use of the terrestrial and celestial globes
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Imaginary line that demarcates the change of one calendar day to the next
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in the Line Islands. The first major cities to experience a new day are
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introduced a change of date for its eastern half by removing Saturday,
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Alaska: ... The transfer of territory from Russia to the United States
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The IDL on the map in this article and all other maps is based on the
673:(UTC+13:00) during summer that experience midnight sun. These include 600:
According to the clock, the first areas to experience a new day and a
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are all west of the IDL and have the same date. American Samoa, the
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for example, is celebrated on 25 December (according to either the
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Seventh-day Adventist Church of Tonga § Date Line controversy
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p.m. local mean time (00:31 GMT) in the capital of New Archangel (
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This description is based on the most common understanding of the
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Erroneous International Date Line from the 1888 EncyclopĂŠdia the
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the Pacific as to which day is really the seventh-day Sabbath.
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Histoire et mémoire des temps coloniaux en Polynésie française
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are islands that use UTC+14:00. These include portions of the
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Forward by 24 hours upon crossing the International Date Line.
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Overcoming Ptolemy: The Revelation of an Asian World Region
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Back by 24 hours upon crossing the International Date Line.
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Forward by one hour for every 15° of longitude crossed, and
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International Earth Rotation and Reference Systems Service
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Tahiti & French Polynesia (early 1797 and late 1846)
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Back by one hour for every 15° of longitude crossed, and
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The IDL remains on the 180° meridian until passing the
1870:"Kiribati's Caroline Island renamed Millennium Island" 1399:) is a particular problem for Seventh Day Adventists, 952:. As a result, the Philippines was one day behind its 1713:. Lanham, Maryland: Lexington Books. pp. 47–48. 1506: 344: 2843:"A Traveller's Guide To The International Dateline" 2584:"In Marshall Islands, Friday Is Followed by Sunday" 2348:
The cession of Russian America to the United States
1973:"Standard Time Zones by HM Nautical Almanac Office" 1166:from its calendar. This changed the time zone from 650:(UTC+12:00) that is far enough north to experience 67:. Unsourced material may be challenged and removed. 3088: 1531: 774:All nations unilaterally determine their standard 692: 240:People traveling eastward must set their clocks: 452:by swinging far to the east, almost reaching the 3861: 2681:. Record. 4 February 2012. pp. 3 & 10. 30:"Date line" redirects here. For other uses, see 2019:Journal of the British Astronomical Association 1511: 1214: 916:claimed the Philippines for Spain on Saturday, 646:, the first area would be any place within the 456:. Kiribati's easternmost islands, the southern 2554:"Tokelau: Wrong local time for over 100 years" 866: 799:Anglo-French Conference on Time-keeping at Sea 3074: 1938:"Standard Time Zones of the World by the CIA" 983:should be removed from the calendar. Monday, 909:, which are actually to the west of the line. 537: 220: 1859:Borneo Post online. Accessed 11 August 2011. 1580:Line-crossing ceremonies relating to the IDL 1289:Date lines according to religious principles 882: 2615:Ariel, Avraham; Berger, Nora Ariel (2005), 2614: 1791:"Arctic Expeditions Commanded by Americans" 1456:. As an example, the fasts of the month of 1031:from England. They had first tried to pass 731:. Unsourced material may be challenged and 532:§ Cartographic practice and convention 3081: 3067: 2836: 2834: 2832: 2830: 2485:"Samoa to Jump Forward in Time by One Day" 2315: 2192:: CS1 maint: location missing publisher ( 2087:"A History of the International Date Line" 2084: 1238: 1125:Samoan Islands and Tokelau (1892 and 2011) 940:had its most important communication with 2870: 2868: 2866: 2864: 2742:Islamic Community Center Anchorage Alaska 2442: 1862: 1843: 1344:Learn how and when to remove this message 897:. The Philippine Islands and the rest of 839: 751:Learn how and when to remove this message 588:Learn how and when to remove this message 325:Learn how and when to remove this message 127:Learn how and when to remove this message 3612:International Commission on Stratigraphy 2324: 2212:Missionary Writing and Empire, 1800–1860 2171: 2057: 2048:Quote is from the session of 14 October. 2034:. Project Gutenberg. 1884. p. 134. 1967: 1965: 1607:There has been some discussion that the 876: 519:are east of the IDL and one day behind. 207: 199: 140: 2827: 2546: 2516:"Samoa Sacrifices a Day for Its Future" 2451:"Samoa's dateline jump passes into law" 1783: 1764: 1089:. In 1867, the United States purchased 987:was followed immediately by Wednesday, 861: 145:The International Date Line around the 14: 3862: 2995: 2861: 2513: 2416: 2371: 2340: 2038:from the original on 11 September 2015 1932: 1930: 1740:. Cambridge University Press. p.  1228:Trust Territory of the Pacific Islands 1085:, which had fallen 12 days behind the 345:§ De facto and de jure date lines 3062: 3026: 2849:from the original on 12 November 2020 2841:Heber, Rabbi Dovid (15 August 2013). 2840: 2495:from the original on 31 December 2011 2282:from the original on 16 February 2022 2253: 2236:from the original on 16 February 2022 1962: 1819: 1709:Gunn, Geoffrey C. (15 October 2018). 1023:On 5 March 1797, missionaries of the 836:His Majesty's Nautical Almanac Office 433:. Two U.S.-owned uninhabited atolls, 212:Example depicting situation at 04:00 2887:from the original on 31 October 2020 2596:from the original on 14 October 2007 2438:from the original on 1 January 2012. 2303:Le ciel de Tahiti et des mers du Sud 1733: 1708: 1674: 1638:on local Friday, not local Thursday. 1326:adding citations to reliable sources 1297: 1281:, including the inhabited island of 1013:Captaincy General of the Philippines 821:Cartographic practice and convention 729:adding citations to reliable sources 696: 570:adding citations to reliable sources 541: 307:adding citations to reliable sources 278: 173:and the next. It passes through the 65:adding citations to reliable sources 36: 2874: 2816:Quran Surah Al-Baqara ( Verse 185 ) 2640: 2465:from the original on 1 January 2012 2123:from the original on 8 January 2017 2058:Ichimura, Anri (17 February 2021). 2024: 1927: 1832:from the original on 5 January 2017 1414:(who usually observe Saturday, the 1117:(00:31 GMT Saturday), now known as 24: 3008:from the original on 27 March 2019 2778:from the original on 27 April 2016 2448: 2301:Maurice Graindorge; Roger Parodi. 2093:from the original on 9 August 2020 1623:Science Digest for Muslim Thinkers 1507:Cultural references and traditions 1474:International date line in Judaism 1185:). Samoa made the change because 1047:and the restoration of the French 856:Coordinated Universal Time, or UTC 379:, the easternmost part of Russian 25: 3906: 3332:Discrete time and continuous time 2804:from the original on 11 July 2012 2718:from the original on 5 March 2012 2514:Mydans, Seth (29 December 2011). 2208:"Missionary writing in Polynesia" 2153:from the original on 1 March 2023 2066:from the original on 1 March 2023 2021:, vol x, no 4, 1906, pp. 176–178. 1910:from the original on 17 June 2016 848:International Meridian Conference 675:Amundsen-Scott South Pole Station 464:, have the latest time on Earth, 402:The IDL crosses between the U.S. 254:The 14th century Arab geographer 169:that is the boundary between one 3257: 3251: 3044:from the original on 9 June 2012 2688:from the original on 27 May 2013 2621:, Greenwood Press, p. 149, 2564:from the original on 3 June 2022 2404:from the original on 3 July 2022 1876:. September 2002. Archived from 1820:Allen, Jared (11 January 2012), 1795:The National Geographic Magazine 1616: 1302: 1058: 791:, not the same as the IDL, is a 701: 546: 360:, the successor to the historic 352:The IDL is roughly based on the 283: 41: 3037:Around the World in Eighty Days 3020: 2996:Harris, Andrew (28 July 2010). 2989: 2959: 2929: 2899: 2790: 2760: 2730: 2712:Radio New Zealand International 2700: 2668: 2643:"Tonga's Common Day of Worship" 2634: 2608: 2576: 2534:from the original on 8 May 2021 2507: 2477: 2365: 2309: 2294: 2247: 2200: 2165: 2135: 2105: 2078: 2051: 2000: 1900:"The World Clock-Query Results" 1767:The Geometry of Biological Time 1641: 1601: 1545:Around the World in Eighty Days 1533:Around the World in Eighty Days 1518:The IDL is a central factor in 1421:Most Seventh Day Adventists in 1313:needs additional citations for 1293: 1035:, but failing that, went along 960:until Monday, 30 December 1844 920:, having sailed westwards from 693:De facto and de jure date lines 557:needs additional citations for 410:being the westernmost) and the 294:needs additional citations for 52:needs additional citations for 3405:History of timekeeping devices 2936:Canterbury Hebrew Congregation 2372:Lamont, Roscoe (1 June 1921). 1892: 1850:Samoa confirms dateline switch 1758: 1727: 1702: 1668: 1548:(1873). The main protagonist, 1105:(Julian), which was Saturday, 889:, running between the Spanish 854:(now redefined and updated as 834:(CIA) or the United Kingdom's 771:, and the other on open seas. 347:below, and map above at right. 274: 13: 1: 2641:Hay, Davi (30 January 1988). 2374:"The International Date Line" 2260:. Au vent des Ăźles Ă©ditions. 1662: 1283:Kiritimati (Christmas Island) 343:International Date Line. See 2998:"Shabbat in Tahiti paradise" 2947:Auckland Hebrew Congregation 2772:Muslim Association of Hawaii 2676:"Date Line Changed in Somoa" 2333:, Executive document 125 in 2220:10.1017/cbo9780511550324.008 1675:Ives, Mike (24 April 2024). 1525:The Island of the Day Before 1513:The Island of the Day Before 1396: 1378:Samoa, which is immediately 1222:atoll, like the rest of the 1215:Kwajalein (c. 1945 and 1993) 885:Meyers Konversations-Lexikon 665:, the first places would be 628:with daylight saving time). 195: 7: 3352:Gravitational time dilation 3188:Barycentric Coordinate Time 2977:Jewish Congregation of Maui 2455:Australian Associated Press 2352:The Works of Charles Sumner 1995: 1765:Winfree, Arthur T. (2001). 1651:, including members of the 1253:colony was centered in the 867:Philippines (1521 and 1844) 840:§ Historic alterations 832:Central Intelligence Agency 667:Antarctic research stations 366:Royal Greenwich Observatory 10: 3911: 3208:Geocentric Coordinate Time 3193:Barycentric Dynamical Time 3131:Coordinated Universal Time 3002:The Australian Jewish News 2917:Jewish Community of Kansai 2089:. Webspace.science.uu.nl. 1583: 1471: 1467: 1355: 1242: 1128: 1062: 870: 654:on the given date. At the 538:Facts dependent on the IDL 260:Magellan–Elcano expedition 225:People traveling westward 221:Circumnavigating the globe 161:) is the line between the 29: 3762: 3653: 3620: 3594: 3475: 3375: 3362:Time-translation symmetry 3292: 3266: 3249: 3173:International Atomic Time 3123: 3100: 2906:Jewish Community of Japan 2172:Schedler, Joseph (1878). 1249:As a British colony, the 1157:American Independence Day 1025:London Missionary Society 76:"International Date Line" 32:Dateline (disambiguation) 2453:. Melbourne, Australia: 1594: 1462:Ramadan § Beginning 1433: 1113:p.m. local time Friday, 979:, ordered that Tuesday, 873:Philippine Standard Time 420:Northern Mariana Islands 362:Greenwich prime meridian 229:must set their clocks: 177:, roughly following the 3622:Astronomical chronology 3595:Archaeology and geology 3302:Absolute space and time 3218:IERS Reference Meridian 3213:International Date Line 3124:International standards 2982:31 October 2020 at the 2966:Congregation Sof Maarav 2952:19 January 2021 at the 2922:29 January 2013 at the 2911:17 January 2006 at the 2875:Shurpin, Rabbi Yehuda. 2821:27 January 2018 at the 2008:"Where the day changes" 1390:different but they are 1239:Eastern Kiribati (1994) 358:IERS Reference Meridian 155:International Date Line 2986:. Accessed April 2016. 2956:. Accessed April 2016. 2926:. Accessed April 2016. 1874:Pacific Islands Report 1855:8 October 2011 at the 1586:Line-crossing ceremony 1559: 1412:Seventh Day Adventists 1231:by removing Saturday, 910: 883: 479:. Accordingly, Samoa, 448:The IDL circumscribes 217: 205: 150: 18:International dateline 3581:Weekday determination 3467:Sundial markup schema 3040:. Project Gutenberg. 3032:"Chapter XXXVII" 2254:Saura, Bruno (1965). 1554: 1472:Further information: 1356:Further information: 880: 211: 203: 144: 3602:Chronological dating 3342:Theory of relativity 3203:Daylight saving time 2883:. Chabad-Lubavitch. 2714:. 28 December 2011. 2434:. 31 December 2011. 2178:. New York. p.  2013:21 July 2017 at the 1734:Neal, Larry (1993). 1401:Seventh Day Baptists 1322:improve this article 1081:was still using the 962:(Gregorian Calendar) 862:Historic alterations 725:improve this section 606:Republic of Kiribati 566:improve this article 499:, and New Zealand's 364:running through the 303:improve this article 61:improve this article 3842: /  3812:Time value of money 3607:Geologic time scale 3462:History of sundials 3327:Cosmological decade 3279:Greenwich Mean Time 3110:Orders of magnitude 2941:16 May 2016 at the 2748:on 15 November 2017 2558:www.timeanddate.com 2390:1921PA.....29..340L 2117:www.timeanddate.com 1416:seventh-day Sabbath 1153:Monday, 4 July 1892 1139:, now divided into 1077:. In addition, the 1053:Armand Joseph Bruat 1045:Franco-Tahitian War 852:Greenwich Mean Time 763:There are two ways 648:Kamchatka Time Zone 528:multiple time zones 393:St. Lawrence Island 3787:Mental chronometry 3415:Marine chronometer 3267:Obsolete standards 2971:7 May 2016 at the 2592:. 22 August 1993. 2589:The New York Times 2520:The New York Times 2149:. 27 August 2007. 2006:A. M. W. Downing, 1681:The New York Times 1611:directly opposite 1087:Gregorian calendar 914:Ferdinand Magellan 911: 891:Philippine Islands 789:nautical date line 769:territorial waters 397:St. Matthew Island 218: 206: 151: 3825: 3824: 3635:Nuclear timescale 3317:Continuous signal 2424:"Where'd Day Go?" 2378:Popular Astronomy 2267:978-2-36734-081-4 2062:. EsquireMag.ph. 1950:on 8 January 2018 1904:Time and date.com 1880:on 22 August 2019 1776:978-1-4757-3484-3 1751:978-0-521-45738-5 1574:Jean Passepartout 1454:new crescent moon 1354: 1353: 1346: 1037:Cape of Good Hope 973:Dutch East Indies 958:(Julian Calendar) 761: 760: 753: 687:Zucchelli Station 663:December solstice 637:Millennium Island 610:Millennium Island 598: 597: 590: 485:Wallis and Futuna 412:Commander Islands 377:Chukchi Peninsula 335: 334: 327: 269:Gasparo Contarini 182:line of longitude 149:(180° longitude). 137: 136: 129: 111: 16:(Redirected from 3902: 3857: 3856: 3854: 3853: 3852: 3847: 3843: 3840: 3839: 3838: 3835: 3526:Dominical letter 3457:Equation of time 3420:Marine sandglass 3261: 3255: 3233:Terrestrial Time 3090:Time measurement 3083: 3076: 3069: 3060: 3059: 3054: 3053: 3051: 3049: 3030:(15 May 2008) . 3024: 3018: 3017: 3015: 3013: 2993: 2987: 2963: 2957: 2933: 2927: 2903: 2897: 2896: 2894: 2892: 2872: 2859: 2858: 2856: 2854: 2838: 2825: 2813: 2811: 2809: 2794: 2788: 2787: 2785: 2783: 2764: 2758: 2757: 2755: 2753: 2744:. Archived from 2734: 2728: 2727: 2725: 2723: 2704: 2698: 2697: 2695: 2693: 2687: 2680: 2672: 2666: 2665: 2663: 2661: 2647: 2638: 2632: 2631: 2612: 2606: 2605: 2603: 2601: 2580: 2574: 2573: 2571: 2569: 2550: 2544: 2543: 2541: 2539: 2511: 2505: 2504: 2502: 2500: 2481: 2475: 2474: 2472: 2470: 2449:McLean, Tamara. 2446: 2440: 2439: 2428:Associated Press 2420: 2414: 2413: 2411: 2409: 2369: 2363: 2361: 2357: 2346:Charles Sumner, 2344: 2338: 2328: 2322: 2321: 2316:Louise Peltzer. 2313: 2307: 2306: 2298: 2292: 2291: 2289: 2287: 2251: 2245: 2244: 2243: 2241: 2204: 2198: 2197: 2191: 2183: 2169: 2163: 2162: 2160: 2158: 2139: 2133: 2132: 2130: 2128: 2109: 2103: 2102: 2100: 2098: 2085:R. H. van Gent. 2082: 2076: 2075: 2073: 2071: 2055: 2049: 2047: 2045: 2043: 2028: 2022: 2004: 1998: 1997: 1994: 1992: 1990: 1984: 1977: 1969: 1960: 1959: 1957: 1955: 1949: 1943:. Archived from 1942: 1934: 1925: 1919: 1917: 1915: 1896: 1890: 1889: 1887: 1885: 1866: 1860: 1847: 1841: 1840: 1839: 1837: 1817: 1811: 1810: 1808: 1806: 1787: 1781: 1780: 1762: 1756: 1755: 1731: 1725: 1724: 1706: 1700: 1699: 1697: 1695: 1672: 1656: 1645: 1639: 1633: 1631: 1629: 1605: 1492:French Polynesia 1440:Islamic calendar 1349: 1342: 1338: 1335: 1329: 1306: 1298: 1272: 1271:31 December 1994 1245:Time in Kiribati 1234: 1224:Marshall Islands 1165: 1164:30 December 2011 1154: 1149:Mālietoa Laupepa 1116: 1112: 1108: 1104: 1101:), on Saturday, 1096: 1065:Alaska Time Zone 1005:Marshall Islands 993:Caroline Islands 990: 986: 985:30 December 1844 982: 981:31 December 1844 977:Narciso Claveria 919: 888: 756: 749: 745: 742: 736: 705: 697: 671:New Zealand Time 593: 586: 582: 579: 573: 550: 542: 517:French Polynesia 501:Kermadec Islands 404:Aleutian Islands 330: 323: 319: 316: 310: 287: 279: 227:around the world 132: 125: 121: 118: 112: 110: 69: 45: 37: 21: 3910: 3909: 3905: 3904: 3903: 3901: 3900: 3899: 3860: 3859: 3850: 3848: 3844: 3841: 3836: 3833: 3831: 3829: 3828: 3826: 3821: 3758: 3649: 3616: 3590: 3471: 3371: 3322:Coordinate time 3294:Time in physics 3288: 3262: 3256: 3247: 3119: 3096: 3087: 3057: 3047: 3045: 3025: 3021: 3011: 3009: 2994: 2990: 2984:Wayback Machine 2973:Wayback Machine 2964: 2960: 2954:Wayback Machine 2943:Wayback Machine 2934: 2930: 2924:Wayback Machine 2913:Wayback Machine 2904: 2900: 2890: 2888: 2873: 2862: 2852: 2850: 2839: 2828: 2823:Wayback Machine 2807: 2805: 2796: 2795: 2791: 2781: 2779: 2766: 2765: 2761: 2751: 2749: 2736: 2735: 2731: 2721: 2719: 2706: 2705: 2701: 2691: 2689: 2685: 2678: 2674: 2673: 2669: 2659: 2657: 2645: 2639: 2635: 2629: 2613: 2609: 2599: 2597: 2582: 2581: 2577: 2567: 2565: 2552: 2551: 2547: 2537: 2535: 2512: 2508: 2498: 2496: 2483: 2482: 2478: 2468: 2466: 2447: 2443: 2422: 2421: 2417: 2407: 2405: 2370: 2366: 2359: 2355: 2345: 2341: 2329: 2325: 2314: 2310: 2299: 2295: 2285: 2283: 2268: 2252: 2248: 2239: 2237: 2230: 2206: 2205: 2201: 2185: 2184: 2170: 2166: 2156: 2154: 2141: 2140: 2136: 2126: 2124: 2111: 2110: 2106: 2096: 2094: 2083: 2079: 2069: 2067: 2056: 2052: 2041: 2039: 2030: 2029: 2025: 2015:Wayback Machine 2005: 2001: 1988: 1986: 1985:on 11 June 2016 1982: 1975: 1971: 1970: 1963: 1953: 1951: 1947: 1940: 1936: 1935: 1928: 1922:Ross Dependency 1913: 1911: 1898: 1897: 1893: 1883: 1881: 1868: 1867: 1863: 1857:Wayback Machine 1848: 1844: 1835: 1833: 1818: 1814: 1804: 1802: 1801:: 459–468. 1907 1789: 1788: 1784: 1777: 1763: 1759: 1752: 1732: 1728: 1721: 1707: 1703: 1693: 1691: 1673: 1669: 1665: 1660: 1659: 1649:Jewish refugees 1647:The fleeing of 1646: 1642: 1627: 1625: 1606: 1602: 1597: 1588: 1582: 1536: 1516: 1509: 1476: 1470: 1436: 1372:Julian calendar 1360: 1350: 1339: 1333: 1330: 1319: 1307: 1296: 1291: 1270: 1255:Gilbert Islands 1247: 1241: 1232: 1217: 1163: 1152: 1133: 1131:Samoa Time Zone 1127: 1115:18 October 1867 1114: 1110: 1107:19 October 1867 1106: 1102: 1094: 1091:Russian America 1083:Julian calendar 1071: 1061: 1021: 1011:as part of the 1001:Mariana Islands 988: 984: 980: 917: 875: 869: 864: 823: 757: 746: 740: 737: 722: 706: 695: 679:McMurdo Station 620:, New Zealand ( 594: 583: 577: 574: 563: 551: 540: 505:Chatham Islands 389:Diomede Islands 331: 320: 314: 311: 300: 288: 277: 223: 198: 133: 122: 116: 113: 70: 68: 58: 46: 35: 28: 23: 22: 15: 12: 11: 5: 3908: 3898: 3897: 3892: 3887: 3882: 3877: 3872: 3823: 3822: 3820: 3819: 3814: 3809: 3807:Time metrology 3804: 3799: 3794: 3789: 3784: 3783: 3782: 3772: 3766: 3764: 3763:Related topics 3760: 3759: 3757: 3756: 3751: 3746: 3741: 3736: 3731: 3726: 3721: 3716: 3711: 3706: 3701: 3696: 3691: 3686: 3681: 3676: 3671: 3666: 3660: 3658: 3651: 3650: 3648: 3647: 3642: 3637: 3632: 3626: 3624: 3618: 3617: 3615: 3614: 3609: 3604: 3598: 3596: 3592: 3591: 3589: 3588: 3583: 3578: 3573: 3568: 3563: 3558: 3553: 3548: 3543: 3538: 3533: 3528: 3523: 3518: 3513: 3508: 3502: 3497: 3492: 3487: 3481: 3479: 3473: 3472: 3470: 3469: 3464: 3459: 3454: 3452:Dialing scales 3449: 3444: 3439: 3438: 3437: 3427: 3422: 3417: 3412: 3407: 3402: 3397: 3392: 3387: 3381: 3379: 3373: 3372: 3370: 3369: 3364: 3359: 3354: 3349: 3344: 3339: 3334: 3329: 3324: 3319: 3314: 3309: 3304: 3298: 3296: 3290: 3289: 3287: 3286: 3284:Prime meridian 3281: 3276: 3274:Ephemeris time 3270: 3268: 3264: 3263: 3250: 3248: 3246: 3245: 3243:180th meridian 3240: 3235: 3230: 3225: 3220: 3215: 3210: 3205: 3200: 3195: 3190: 3185: 3180: 3175: 3170: 3165: 3160: 3155: 3150: 3145: 3140: 3139: 3138: 3127: 3125: 3121: 3120: 3118: 3117: 3112: 3107: 3101: 3098: 3097: 3086: 3085: 3078: 3071: 3063: 3056: 3055: 3019: 2988: 2958: 2928: 2898: 2860: 2845:. Star-k.org. 2826: 2789: 2759: 2738:"Praying Time" 2729: 2699: 2667: 2633: 2627: 2607: 2575: 2545: 2506: 2491:. 9 May 2011. 2476: 2441: 2415: 2364: 2339: 2323: 2308: 2293: 2266: 2246: 2228: 2199: 2164: 2134: 2104: 2077: 2050: 2023: 1999: 1961: 1926: 1891: 1861: 1842: 1812: 1782: 1775: 1757: 1750: 1726: 1719: 1701: 1666: 1664: 1661: 1658: 1657: 1640: 1599: 1598: 1596: 1593: 1581: 1578: 1535: 1530: 1515: 1510: 1508: 1505: 1469: 1466: 1435: 1432: 1352: 1351: 1310: 1308: 1301: 1295: 1292: 1290: 1287: 1243:Main article: 1240: 1237: 1233:21 August 1993 1216: 1213: 1145:American Samoa 1137:Samoan Islands 1126: 1123: 1103:7 October 1867 1079:Russian Empire 1069:Time in Alaska 1060: 1057: 1020: 1017: 989:1 January 1845 969:Imperial China 926:Atlantic Ocean 871:Main article: 868: 865: 863: 860: 822: 819: 759: 758: 709: 707: 700: 694: 691: 596: 595: 554: 552: 545: 539: 536: 477:American Samoa 454:150°W meridian 435:Howland Island 373:Wrangel Island 350: 349: 333: 332: 291: 289: 282: 276: 273: 249: 248: 245: 238: 237: 234: 222: 219: 197: 194: 187:The line is a 135: 134: 49: 47: 40: 26: 9: 6: 4: 3: 2: 3907: 3896: 3893: 3891: 3890:Pacific Ocean 3888: 3886: 3883: 3881: 3878: 3876: 3873: 3871: 3868: 3867: 3865: 3858: 3855: 3818: 3815: 3813: 3810: 3808: 3805: 3803: 3800: 3798: 3795: 3793: 3790: 3788: 3785: 3781: 3778: 3777: 3776: 3773: 3771: 3768: 3767: 3765: 3761: 3755: 3752: 3750: 3747: 3745: 3742: 3740: 3737: 3735: 3732: 3730: 3727: 3725: 3722: 3720: 3717: 3715: 3712: 3710: 3707: 3705: 3702: 3700: 3697: 3695: 3692: 3690: 3687: 3685: 3682: 3680: 3677: 3675: 3672: 3670: 3667: 3665: 3662: 3661: 3659: 3657: 3656:units of time 3652: 3646: 3645:Sidereal time 3643: 3641: 3638: 3636: 3633: 3631: 3630:Galactic year 3628: 3627: 3625: 3623: 3619: 3613: 3610: 3608: 3605: 3603: 3600: 3599: 3597: 3593: 3587: 3586:Weekday names 3584: 3582: 3579: 3577: 3576:Tropical year 3574: 3572: 3569: 3567: 3564: 3562: 3559: 3557: 3554: 3552: 3549: 3547: 3544: 3542: 3541:Intercalation 3539: 3537: 3534: 3532: 3529: 3527: 3524: 3522: 3519: 3517: 3514: 3512: 3509: 3507:(lunar Hijri) 3506: 3503: 3501: 3498: 3496: 3493: 3491: 3488: 3486: 3483: 3482: 3480: 3478: 3474: 3468: 3465: 3463: 3460: 3458: 3455: 3453: 3450: 3448: 3445: 3443: 3440: 3436: 3433: 3432: 3431: 3428: 3426: 3423: 3421: 3418: 3416: 3413: 3411: 3408: 3406: 3403: 3401: 3398: 3396: 3393: 3391: 3388: 3386: 3383: 3382: 3380: 3378: 3374: 3368: 3365: 3363: 3360: 3358: 3355: 3353: 3350: 3348: 3347:Time dilation 3345: 3343: 3340: 3338: 3335: 3333: 3330: 3328: 3325: 3323: 3320: 3318: 3315: 3313: 3310: 3308: 3305: 3303: 3300: 3299: 3297: 3295: 3291: 3285: 3282: 3280: 3277: 3275: 3272: 3271: 3269: 3265: 3260: 3254: 3244: 3241: 3239: 3236: 3234: 3231: 3229: 3226: 3224: 3221: 3219: 3216: 3214: 3211: 3209: 3206: 3204: 3201: 3199: 3196: 3194: 3191: 3189: 3186: 3184: 3183:24-hour clock 3181: 3179: 3178:12-hour clock 3176: 3174: 3171: 3169: 3166: 3164: 3161: 3159: 3156: 3154: 3151: 3149: 3146: 3144: 3141: 3137: 3134: 3133: 3132: 3129: 3128: 3126: 3122: 3116: 3113: 3111: 3108: 3106: 3103: 3102: 3099: 3095: 3091: 3084: 3079: 3077: 3072: 3070: 3065: 3064: 3061: 3043: 3039: 3038: 3033: 3029: 3023: 3007: 3003: 2999: 2992: 2985: 2981: 2978: 2974: 2970: 2967: 2962: 2955: 2951: 2948: 2944: 2940: 2937: 2932: 2925: 2921: 2918: 2914: 2910: 2907: 2902: 2886: 2882: 2878: 2871: 2869: 2867: 2865: 2848: 2844: 2837: 2835: 2833: 2831: 2824: 2820: 2817: 2803: 2799: 2798:"Quran 2:185" 2793: 2777: 2773: 2769: 2763: 2747: 2743: 2739: 2733: 2717: 2713: 2709: 2703: 2684: 2677: 2671: 2655: 2651: 2644: 2637: 2630: 2624: 2620: 2619: 2611: 2595: 2591: 2590: 2585: 2579: 2563: 2559: 2555: 2549: 2533: 2529: 2525: 2521: 2517: 2510: 2494: 2490: 2486: 2480: 2464: 2460: 2456: 2452: 2445: 2437: 2433: 2432:New York Post 2429: 2425: 2419: 2403: 2399: 2395: 2391: 2387: 2383: 2379: 2375: 2368: 2353: 2349: 2343: 2336: 2332: 2327: 2319: 2312: 2304: 2297: 2281: 2277: 2273: 2269: 2263: 2259: 2258: 2250: 2235: 2231: 2229:9780521826990 2225: 2221: 2217: 2213: 2209: 2203: 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