Talk:Solar Hijri calendar

"Accuracy" Graph

The graph in the "Accuracy" section could use some labels on it axes. 96.38.164.2 (talk) 06:07, 10 March 2015 (UTC)

SBader (talk) 13:34, 26 April 2015 (UTC)

spellings

Why does the table of month names have a column named "Iranian-English" rather than, say, "Romanized"? —Tamfang (talk) 18:55, 21 October 2015 (UTC)  Done YBG (talk) 06:08, 22 October 2015 (UTC)

History of calendar

It would be useful to know when this calendar was invented, why it was invented, the significance of it, etc. As it stands this article merely explains that it is a calendar in use in Iran and Afghanistan. — Preceding unsigned comment added by BaronRobie (talk • contribs) 15:29, 2 April 2018 (UTC)

"There is no 37 year cycle in the natural progression."

The following current paragraph is not entirely correct:

"The Solar Hijri calendar produces a five-year leap year interval after about every seven four-year leap year intervals. It usually follows a 33-year cycle with occasional interruptions by single 29-year or 37-year subcycles. The reason for this behaviour is (as explained above) that it tracks the observed vernal equinox. By contrast, some less accurate predictive algorithms are suggestion based on confusion between the average tropical year (365.2422 days, approximated with near 128-year cycles or 2820-year great cycles) and the mean interval between spring equinoxes (365.2424 days, approximated with a near 33-year cycle)."

In fact the natural progression of leap year intervals is entirely made up of 29 year and 33 year cycles. There is no 37 year cycle in the natural progression. Most of the time these cycles will be one 29 year cycle followed by three 33 year cycles, giving us 128 year higher-level cycles. Eventually, this will be interrupted by a 161 year higher-level cycle then return to a series of 128 year higher-level cycles. The exact pattern is difficult to determine mathematically because the true length of the year is constantly changing. The 37 year cycle is an artificial construct that is part of the 2820 year cycle.

The 2820 year cycle is a man-made construct in an attempt to provide a simple set of rules based on a 365 and 683/2820 day year. This number, while close, is not entirely accurate, and (as previously stated) the true length of the year is changing. Even accepting that number as accurate and fixed, the actual progression is 1 x [1x(161 year cycle) + 5x(128 year cycle)] + 3 x [1x(161 year cycle) + 4x(128 year cycle)]. (I've shown the various levels of yearly cycles below for those interested.) The 37 year cycle was invented by someone who wanted to simplify the rules to only 22 higher-level cycles of 128 days. Since this adds up to only 2816, the last 33 year was changed to a 37 year cycle. This scheme does add up in the end, and only shifts the leap year more than a day off a couple times through the 2820 year cycle. But, it is not the progression that occurs naturally when you add an extra day to any year that would have the vernal equinox a day or more off.

1x5 + 6x4 = 29 (7 leap days)

1x5 + 7x4 = 33 (8 leap days)

1x29 + 3x33 = 128 (31 leap days)

1x29 + 4x33 = 161 (39 leap days)

1x161 + 5x128 = 801 (194 leap days)

1x161 + 4x128 = 673 (163 leap days)

1x801 + 3x673 = 2820 (683 leap days) — Preceding unsigned comment added by Terr1959 (talk • contribs) 11:59, 27 July 2018 (UTC)

Article Name should be changed to Persian Solar Calendar

The name "Hijri calendar" is incorrect, as this is not an Islamic Calendar, it is Persian; The same calendar is used by Zoroastrians/Mazdaic communities (with different references for "Year Zero". Also, this calendar is used for the "Shahanshahi Calendar" which considers "Years Zero" to be the date of the coronation of Cyrus the Great)

Proposing an appropriate name change for this article and all articles which use the misnomer "Hijri":

Name change: Persian Solar calendar

Editors feel free to add comments supporting or opposing name change.

Xoltron (talk) 04:06, 8 March 2019 (UTC)

Not specifically Persian, it is also used officially in Afghanistan. Khestwol (talk) 05:31, 8 March 2019 (UTC)

One reason for the name Hijri is that the epoch of the calendar is the Hijra. (The Shahanshahi Calendar has a different epoch as you say, so it cannot be correct to say it is the same calendar, All you can say is that it has the same names for the months). Who uses the calendar is irrelevant, although most users are Shia Islam.

It seems to me that the reasons you propose for the change are unconvincing. You would need to find good neutral evidence of extensive use of another name to satisfy WP:common name. In the meantime, I have created Persian solar calendar as a redirect to this article.

See also the Iranian calendars article. --John Maynard Friedman (talk) 10:12, 8 March 2019 (UTC)

What your saying suggests a need for a separate article for the Persian Calendar. If you look at the Wikipedia articles for the individual months of the Persian Calendar (Esfand for example), they are described (incorrectly) as being months of the "Solar Hijri Calendar" with a link to this article. I am not sure the argument that an epoch alone defines a calendar - the months of this calendar, for example, are all 100% Zoroastrian/Persian names, definitely not Islamic...which makes the word "Hijri" in the name highly misleading especially to the novice reader. The argument that "most of the users are Shia" of course doesn't count into this - it's just a coincidence (and this Calendar is also used in Afghanistan, which does not have a significant Shia population)Xoltron (talk)

@Xoltron: I think the question is what is the commonly recognizable name? Because we only use these names that are known for most of people read here→WP:COMMONNAME. I am not sure but I think most of reliable sources use Solar Hijri calender. You can add (also called Persian calender) to the lead. Thanks.--SharabSalam (talk) 20:47, 8 March 2019 (UTC)

@Xoltron: Your point on the month names misdirecting is a good one. Maybe they should redirect to a section of Iranian calendars? By the way, Persian calendar redirects to Iranian calendars. --John Maynard Friedman (talk) 10:39, 9 March 2019 (UTC)

Re-reading your note, it seems that the month articles themselves need revision, not just fixing the wlinks to the more appropriate target. Please go ahead! --John Maynard Friedman (talk) 10:45, 9 March 2019 (UTC)

Calendar used in Iran from 1976 to 1979

What is the name of the calendar used in Iran from 1976 to 1979? The years in the said calendar can be determined by adding 1180 to the Solar Hijri year. The Gregorian year 2019, for example, corresponds to 1397–1398 in the Solar Hijri calendar. It corresponds to 2577–2578 in the calendar used in Iran from 1976 to 1979. —Jencie Nasino (talk) 00:54, 14 August 2019 (UTC)

Table of worldwide events: WP:BRD discussion

JMRAMOS0109 contributed the table below, per WP:BEBOLD. Invoking WP:BRD, I have reverted it pending discussion here. My primary reason is WP:INDISCRIMINATE ("Wikipedia is not an indiscriminate collection of information"). The article is about an Islamic calendar, not various random events that might be of interest to some Iranians and Afghans living in the US, not religious events in the Christian and Hebrew faiths, not whatever happened to occur to the editor who wrote it. It makes sense to give the correspondence of dates as between the SH and CE calendars. It does not make sense to load the article with irrelevant trivia. Discuss. --John Maynard Friedman (talk) 16:57, 5 February 2021 (UTC)

Movable holidays, sports events and annual international cultural events as marked on the Solar Hijri calendar

Given the huge numbers of Iranians and Afghans living in the diaspora outside their home countries, the following guide marks the dates of annual national and international events as marked using the Solar Hijri calendar in force there in both Iran and Afghanistan, as well as movable religious holidays marked by Iranian and Afghan Christians (Catholics of Western and Eastern Rites, Eastern Orthodox, Coptics and Protestants), Taoists and Buddhists living abroad. Those celebrated by Muslims with origins from Iran and Afganistan, as a general rule, follow the Islamic calendar, also called the Lunar Hijri. The Hebrew calendar is used by Iranians and Afghans abroad who profess Judaism (as well as Jews in Afghanistan itself) who celebrate Jewish liturgical festivals as well as several holidays marked in Israel itself. The fixed holidays and observances, as well as select movable national and international observances and holidays, are indicated in the individual articles of each month.

Movable holiday/ sports, media or cultural event	Date on Solar Hijri in Iran	Date on Solar Hijri in Afghanistan	Description
Movable Christian holidays
Ash Wednesday, Clean Wednesday/Wednesday of Cheesefare Week	Wednesday before First Sunday of Lent, Bahman or Esfand (Catholic and Protestant) Wednesday before Forgiveness Sunday, Bahman or Esfand (most Eastern Orthodox)	Wednesday before First Sunday of Lent, Salwāǧa or Kab (Catholic and Protestant) Wednesday before Forgiveness Sunday, Salwāǧa or Kab (most Eastern Orthodox)	This movable holiday marks the offical commencement of Lent for most Christians. For most Eastern Orthodox, Cheesefare Wednesday is the most lenten of all the days of Cheesefare Week.
Clean Monday	Monday after Forgiveness Sunday, Bahman or Esfand (most Eastern Orthodox)	Monday after Forgiveness Sunday, Salwāǧa or Kab (most Eastern Orthodox)	This movable holiday marks the offical commencement of Lent for most Orthodox Christians.
Good Friday	Friday before Easter, Farvardin or Ordibehesht (Catholic and Protestant) Friday before Easter, Ordibeshesht or Khordad, rarely final days of Farvardin (Eastern Orthodox)	Friday before Easter, Wray or Ǧwayay (Catholic and Protestant) Friday before Easter, Ǧwayay or Ǧbargolay, rarely final days of Wray (Eastern Orthodox)	The Friday before Easter in which the Passon and Death of Jesus is marked by special services.
Easter	Farvardin or Ordibehesht (Catholic and Protestant) Ordibeshesht or Khordad, rarely final days of Farvardin (Eastern Orthodox)	Wray or Ǧwayay (Catholic and Protestant) Ǧwayay or Ǧbargolay, rarely final days of Wray (Eastern Orthodox)	Celebrates the Resurrection of Jesus.
Feast of the Ascension	Thursday 40 days after Easter or Sunday before Pentecost, Ordibehesht or Khordad (Catholic, Protestant and Oriental Orthodox) Thursday 40 days after Easter, Khordad or Tir (most Eastern Orthodox)	Thursday 40 days after Easter or Sunday before Pentecost, Ǧbargolay or Čungāx̌ (Catholic, Protestant and Oriental Orthodox) Thursday 40 days after Easter, Ǧbargolay or Čungāx̌ (most Eastern Orthodox)	Celebrates the Asension of Jesus into Heaven. Considered an Orthodox Great Feast
Pentecost	Sunday following the Sunday of the Ascension, Khordad (Catholic and Protestant) Sunday following the end of the afterfeast of the Ascension, Khordad or Tir (most Eastern Orthodox)	Sunday following the Sunday of the Ascension, Ǧbargolay (Catholic, Protestant) Sunday following the end of the afterfeast of the Ascension, Ǧbargolay or Čungāx̌ (most Eastern Orthodox)
Feast of Christ the Priest	Pentecost Thursday, Khordad (Catholic)	Pentecost Thursday, Ǧbargolay (Catholic)
Trinity Sunday Sunday of All Saints	Sunday after Pentecost, Khordad (Catholic and Protestant) Sunday after Pentecost, Khordad or Tir (most Eastern Orthodox)	Sunday after Pentecost, Ǧbargolay (Catholic, Protestant) Sunday after Pentecost, Ǧbargolay or Čungāx̌ (most Eastern Orthodox)
International sports events
College Football Playoff National Championship	Second or Third Monday of Dey	Second or Third Monday of Marǧūmay
Senior Bowl Saturday	Last Saturday of Dey or First Saturday of Bahman	Last Saturday of Marǧūmay or First Saturday of Salwāǧa
Pro Bowl Sunday	Last Sunday of Dey or First Sunday of Bahman	Last Sunday of Marǧūmay or First Sunday of Salwāǧa
NHL All-Star Skills Competition and National Hockey League All-Star Game Saturday	First Friday and Saturday of Bahman	First Friday and Saturday of Salwāǧa	The NHL All Star Game is an exhibition ice hockey game that is traditionally held during the regular season of the National Hockey League (NHL), with many of the League's star players playing against each other. Each team plays with four players. The Game's proceeds benefit the pension fund of the players. It marks the symbolic halfway point of the NHL regular season. The NHL All-Star Skills Competition, held on the night before the All Star Game, is an NHL event that showcases the talents of its all-star participants.
Australian Open	Second to third week of Bahman	Second to third week of Salwāǧa	The first of the four Tennis Grand Slam tournaments and among one of the most watched on television.
Super Bowl Sunday	Third or Final Sunday of Bahman	Third or Final Sunday of Salwāǧa	Marks the formal conclusion of the National Football League season with the Super Bowl game, one of the most awaited sporting events in the United States sporting year. On this day, following the championship game between the champions of the National and American Football Conferences, the overall national champion of the NFL season is formally proclaimed with the bestowment of the Lombardi Trophy to the winning team of the game.
Daytona 500 Sunday	Last Sunday of Bahman	Last Sunday of Salwāǧa	As the Daytona 500 is being regarded as the most important and prestigious race on the NASCAR United States calendar, carrying by far the largest purse, it is the opening series raceday of the NASCAR Cup Series and the final day of Speedweeks, with events all held at Daytona International Speedway which officially open the NASCAR regular season.
Opening Day	Thursday or Friday of the first or second week of Farvardin	Thursday or Friday of the first or second week of Wray	Marks the official opening of the Major League Baseball season. It's current date, set annually by Major League Baseball, falls during the Nowruz period. Formerly on a chosen day of the last week of Farvardin or Wray until 1960 (1339 AH). The first time this was done was in 1958 (1337 AH), but in the old 154 game regular season format.
Stanley Cup Playoffs, NHL Conference Finals and the Stanley Cup Finals	Ordibehesht to Khordad	Ǧwayay to Ǧbargolay	The playoffs and season ending championship of the National Hockey League in the United States and Canada. One of the world's most watched sports events of the year.
NBA Playoffs, NBA Conference Finals and the NBA Finals	Ordibehesht to Khordad, rarely ending at Tir	Ǧwayay to Ǧbargolay, rarely ending at Čungāx̌	The playoff and season ending championship of the National Basketball Association in the United States and Canada. One of the world's most watched sports events of the year.
French Open	Second to third week of Khordad	Second to third week of Ǧbargolay	The second of the four Tennis Grand Slam tournaments and among one of the most watched on television. Held in Paris at the historic grounds of the Stade Roland Garros.
Major League Baseball All-Star Game	Final/Fouth Tuesday of Tir	Final/Fouth Tuesday of Čungāx̌	Also known as the "Midsummer Classic", the All Star Game is an annual professional baseball game sanctioned by Major League Baseball (MLB) and contested between the all-stars from the American League (AL) and National League (NL). All-Stars are selected by fans for starting fielders, by managers for pitchers, and by managers and players for reserves. The game is usually played on the second or third Tuesday in July in the Gregorian calendar, and is meant to mark the symbolic halfway point of the MLB season (though not the mathematical halfway point, which, for most seasons, falls within the previous calendar week).
Summer Olympic Games	Movable, set by the International Olympic Committee, falling in the period between Mordad to Mehr	Movable, set by the International Olympic Committee, falling in the period between Zmaray to Təla/Tala	One of the world's more awaited international multi-sport events falling every four years (usually in a leap year), also one of the most viewed on television and the Internet. Organized by the International Olympic Committee, the preparations for this event is the Committee's overall supervision. Lasts two weeks.
Summer Youth Olympic Games	Movable, set by the International Olympic Committee, falling in the period between Mordad to Mehr	Movable, set by the International Olympic Committee, falling in the period between Zmaray to Təla/Tala	The YOG is an international multi-sport event for athletes between 14-18 years old, organized by the International Olympic Committee, which is responsible for the overseeing prepatory work for the host city. The games are held every four years in staggered summer and winter events consistent with the current Olympic Games format, though in reverse order with Winter Games held in leap years instead of Summer Games.
Major League Soccer Homegrown Game	Second Tuesday of Mordad	Second Tuesday of Zmaray	This game is an exhibition match between the best selected homegrown players in Major League Soccer and a selected opponent.
Major League Soccer All-Star Game	Second Wednesday of Mordad	Second Wednesday of Zmaray	This game is an annual soccer game held by Major League Soccer featuring selected players from the league against an international club. MLS initially adopted a traditional all-star game format used by other North American sports leagues where the Eastern Conference squared off against the Western Conference. This eventually evolved into the current system where the league annually invites a club from abroad to play against a league all-star team in a friendly match. Symbolically marks the halfway mark of the MLS season.
NFL Kickoff Opening Day	Third Thursday of Shahrivar	Third Thursday of Waǵay	Introduced in 2002, the Kickoff Game officially marks the formal beginning of the NFL regular season in the United States.
Major League Baseball postseason and the World Series	Second or Third Tuesday of Mehr to the third week of Aban Wild Card Week (Wild Card Series Week):Second or third week of Mehr Division Series: Third to Forth Week of Mehr League Championship Series:Fourth Week of Mehr to First week of Aban World Series:First to third week of Aban	Second or Third Tuesday of Təla/Tala to the third week of Laram Wild Card Week (Wild Card Series Week):Second or third week of Təla/Tala Division Series: Third to Forth Week of Təla/Tala League Championship Series:Fourth Week of Təla/Tala to First week of Laram World Series:First to third week of Laram	This is an playoff elimination tournament held after the conclusion of the Major League Baseball (MLB) regular season, which leads up to the season ending World Series championship game series.
Grey Cup Day	First Sunday of Azar	First Sunday of Līndəi/Leendai	First held in 1909, the Grey Cup is both the championship game of the Canadian Football League (CFL) and the trophy awarded to the victorious team playing in the namesake championship of professional Canadian football. The game is contested between the winners of the CFL's East and West Divisional playoffs and is one of Canadian television's largest annual sporting events.
MLS Cup Day	Third Saturday of Azar	Third Saturday of Līndəi/Leendai	Introduced in 1996, The MLS Cup is the annual championship game of Major League Soccer (MLS) and the culmination of the MLS Cup Playoffs (which begin in Aban or Təla/Tala in regards to the Solar Hijri date falling on the equivalent date in the Gregorian calendar). It is a faceoff championship game between the winning teams of the Eastern and Western Conferences. The MLS Conference Semifinals and Conference Finals are held on the two weekends prior to the Cup day.
International film, television and/or music events
Golden Globe Awards	Second Sunday of Dey	Second Sunday of Marǧūmay
Critics' Choice Awards	Fourth Sunday of Dey	Fourth Sunday of Marǧūmay
Screen Actors Guild Awards	First Sunday of Bahman	First Sunday of Salwāǧa
Academy Awards	Second or Third Sunday of Esfand	Second or Third Sunday of Kab
Nickelodeon Kids' Choice Awards	First or Third Saturday of Farvardin	First or Third Saturday of Wray	The KCA is an annual American children's awards ceremony show that is produced by Nickelodeon. Usually held on a Saturday night in late March or early April in the Gregorian calendar, the show honors the year's biggest television, movie, and music acts as voted by viewers worldwide of Nickelodeon networks. If held on the first Saturday of the month of Farvardin or Wray in the Solar Hijri year, the date of the awards falls as part of the celebrations of Nowruz.
Teen Choice Awards	Third or Last Sunday of Mordad	Third or Last Sunday of Zmaray

Why title has Hijri in it?

Hijri is for the time prophet Mohammad moved from Madinah to Mecca. why khorshidi calendar has to have the word Hijri in it? 133.11.226.13 (talk) 01:20, 10 March 2023 (UTC)

Because the epoch (beginning) of the calendar is the Hijrah. As I'm sure you must know, Shia Islam and Sunni Islam have different traditions. --𝕁𝕄𝔽 (talk) 13:27, 10 March 2023 (UTC)

If you meant "why is this article called "Solar Hijri calendar" (rather than just "Solar calendar"), the reason is that there are many solar calendars so a way is needed to identify this one specifically. But also, it not the only calendar that uses the Hijrah as its epoch, so we couldn't just call it the "Hijri calendar" either. We have a policy, Wikipedia:Common name, which in a nutshell says that we use the name most widely used in worldwide publications. That explains why Islamic calendar describes the Islamic lunar calendar. By the way, we also have Hijri calendar, a Wikipedia:Disambiguation page that explains that there are three possible articles that may be what is wanted. We could have called it "Iranian calendar": if you believe we should do that, you will need to produce many sources that prefer that name. Does that answer your question? --𝕁𝕄𝔽 (talk) 15:11, 10 March 2023 (UTC)

A Commons file used on this page or its Wikidata item has been nominated for deletion

The following Wikimedia Commons file used on this page or its Wikidata item has been nominated for deletion:

• 12Hakhamanish.jpg

Participate in the deletion discussion at the nomination page. —Community Tech bot (talk) 13:09, 6 April 2023 (UTC)

Calendar image

Iranian Islamic calendar dedicated to Qajar ruler Naser al-Din Shah in 1280, Linden Museum, Stuttgart, Germany

Does anyone know with confidence whether this image is a solar or a lunar Hijri calendar? 𝕁𝕄𝔽 (talk) 07:21, 19 April 2024 (UTC)

Calculation

The lead has:" If a Gregorian calendar date falls after the spring equinox, the corresponding year of the Solar Hijri calendar would be the Gregorian year minus 621 years. E.g. a Gregorian date of June 2024 falls in the Hijri year of 1403 (2024 − 621 = 1403)." This seems incomplete to me. It should, imho, also include dates BEFORE the equinox. i.e. something like "while dates before the spring equinox require 622 subtracted from the Gregorian year." (If I've got that right). If we're going to include the calculation it should be able to handle the entire year. On a related subject. Let's say that the equinox occurs *exactly* at 9:43:21 on March 27 of year X. What is the year for 8 am? what is the year for 10 am? That is, does the conversion change at precisely the time of the equinox or does it occur at the end or the beginning of the day?71.31.145.237 (talk) 11:41, 7 September 2024 (UTC)

Thank you for identifying this question.

Per WP:NOTMANUAL, that sentence (If a Gregorian calendar date falls after the spring equinox, the corresponding year of the Solar Hijri calendar would be the Gregorian year minus 621 years. E.g. a Gregorian date of June 2024 falls in the Hijri year of 1403 (2024 − 621 = 1403).) should never have been there in the first place. No citation is given, it is not encyclopedic and it certainly doesn't belong in the lead. I have deleted it.

Wikipedia is the wrong place to look for that sort of detail. (There are some sources cited at Islamic New Year that may have the answer.) 𝕁𝕄𝔽 (talk) 12:14, 7 September 2024 (UTC)