[{"data":1,"prerenderedAt":225},["ShallowReactive",2],{"article:zi-wei-vs-bazi:en":3,"article-topic:zi-wei-dou-shu:en":109,"related-articles:en:zi-wei-dou-shu:zi-wei-vs-bazi:zi-wei-dou-shu,bazi-four-pillars":184},{"slug":4,"title":5,"description":6,"category":7,"topicSlug":8,"legacyPath":9,"authorId":10,"publishedAt":11,"updatedAt":11,"noindex":12,"summary":13,"sections":14,"references":73,"relatedTools":88,"seo":90,"contentImage":95},"zi-wei-vs-bazi","Two Systems, Two Years: Where BaZi and Zi Wei Disagree","BaZi turns the year at 立春 and Zi Wei turns it at 正月初一, and the gap between them runs from a few days to a fortnight. In 2023 and 2024 the two systems handed the same week two different year pillars.","Zi Wei Dou Shu","zi-wei-dou-shu","","chen-jun","2026-10-26",false,"On 2023-01-22 Zi Wei read 癸卯 甲寅 while BaZi read 壬寅 癸丑; on 2024-02-06 the positions reversed. The month boundary diverges the same way, and 命宫 moves on the new moon rather than on 立春.",[15,20,45,50,55,60,68],{"heading":16,"body":17},"The two systems do not agree on what year a person was born in",[18,19],"BaZi and Zi Wei Dou Shu are usually described as two ways of reading the same birth data. They are not reading the same data. They use different year boundaries, different month boundaries and different day boundaries, and in the days between those boundaries they assign different labels to the same person.","This is not a dispute between schools. It is a difference in what the year is for. BaZi's year pillar is tied to the sun's position; Zi Wei's year label is tied to the lunar calendar. Both are internally consistent, and they diverge on schedule.",{"heading":21,"body":22,"table":23},"立春 against 正月初一, measured","In 2023 the first day of the lunar year fell on 22 January and 立春 fell on 4 February, so the lunar year turned thirteen days before the solar one. In 2024 the order reversed: 立春 came on 4 February and the new moon on 10 February, leaving a six-day window in which BaZi had changed year and Zi Wei had not.",{"headers":24,"rows":29},[25,26,27,28],"Date","Zi Wei year and month","BaZi year and month","State",[30,35,38,43],[31,32,33,34],"2023-01-22","癸卯 甲寅","壬寅 癸丑","Zi Wei has turned, BaZi has not",[36,32,32,37],"2023-02-04","both have turned",[39,40,41,42],"2024-02-06","癸卯 乙丑","甲辰 丙寅","BaZi has turned, Zi Wei has not",[44,41,41,37],"2024-02-10",{"heading":46,"body":47},"The window is not small, and it opens in both directions",[48,49],"In 2021 the lunar new year fell on 12 February against a 立春 on 3 February, a nine-day gap in the other direction. Anyone born inside one of these windows gets two different year pillars from the two systems, and neither is a mistake.","Because the lunar year runs about eleven days short of the solar year, the new moon drifts earlier against 立春 by roughly that much each year until a leap month pulls it back. The window therefore does not stay the same size or the same sign. Some years the lunar year turns first, some years the solar one does, and in a minority of years the two land within a day of each other and the window nearly closes.",{"heading":51,"body":52},"The month boundary is a different boundary as well",[53,54],"Zi Wei takes the lunar month as its month unit; BaZi takes the solar term. The two coincide only by accident. 命宫 is counted from 寅 one palace per lunar month, so a birth in the last days of a lunar month and a birth in the first days of the next differ by a full palace even when the sun has barely moved.","The clearest demonstration is already in the table. On 6 February 2024, Zi Wei still reads the month as 乙丑 because the lunar month had not turned, while BaZi reads 丙寅 because 立春 had passed. 命宫 on that date is 未 with a 火六局; on 10 February, once the lunar month turns, it becomes 申 with a 金四局. The palace and the bureau both move on the new moon, not on 立春.",{"heading":56,"body":57},"Both systems change the day at 23:00, but only one has a slot for it",[58,59],"Zi Wei carries thirteen time slots rather than twelve: 早子时 at the start of the day and 晚子时 at its end, both mapped to the 子 branch. BaZi carries twelve. The practical effect is the same in both — the day pillar advances at 23:00 rather than at midnight — but Zi Wei names the hour that straddles the change instead of folding it into the next day silently.","Measured on 12 February 2024: 早子时 gives a day pillar of 丙午, 晚子时 gives 丁未. The lunar date stays 正月初三 in both cases, and 命宫 stays in 寅 because both slots are the 子 hour. What changes is the day pillar and, through it, everything the day pillar feeds.",{"heading":61,"body":62,"bullets":63},"What follows when the two charts disagree","A disagreement between the systems is a fact about the calendars, not a fault in either chart.",[64,65,66,67],"State the boundary convention. A chart that does not say whether it uses 立春 or 正月初一 has not answered which year it is reading.","Check whether the birth falls inside a divergence window. The windows run from a few days to a fortnight and occur once a year, and they are exactly where the two systems part.","Do not treat the disagreement as an error to correct. Two year pillars from two conventions is an accurate description of the data.","Do not mix layers. A Zi Wei palace read against a BaZi year pillar is reading two calendars at once, and the mismatch is structural rather than interpretive.",{"heading":69,"body":70},"Where the comparison runs out",[71,72],"The two systems also differ in what they are built to describe. BaZi works from four pillars and the relations among them; Zi Wei works from a twelve-palace ring and a star set. Comparing their year boundaries is comparing calendars, and that can be settled by arithmetic.","Comparing their readings cannot be settled the same way, because the two do not produce the same kind of statement. Which is why the useful question is not which system is right. It is which calendar the chart in front of you is using, and whether the birth data sits inside a window where the answer changes.",[74,82],{"id":75,"kind":76,"title":77,"detail":78,"publisher":79,"url":80,"accessedAt":81},"ziweiQuanshu","traditional","Zi Wei Dou Shu Quanshu (紫微斗數全書)","A classical source for the twelve palaces, the main stars, and the four transformations that Zi Wei Dou Shu terminology is built on.","Wikisource digital text","https:\u002F\u002Fzh.wikisource.org\u002Fwiki\u002F%E7%B4%AB%E5%BE%AE%E6%96%97%E6%95%B8%E5%85%A8%E6%9B%B8","2026-10-14",{"id":83,"kind":76,"title":84,"detail":85,"publisher":79,"url":86,"accessedAt":87},"yuanhaiZiping","Yuanhai Ziping (渊海子平)","A classical source for Four Pillars terminology, element relationships, and the Day Master framework.","https:\u002F\u002Fzh.wikisource.org\u002Fwiki\u002F%E6%B7%B5%E6%B5%B7%E5%AD%90%E5%B9%B3","2026-07-14",[8,89],"bazi-four-pillars",{"title":91,"description":92,"path":93,"type":94},"Zi Wei Dou Shu vs BaZi: Year and Month Boundaries","The 立春 and 正月初一 year boundaries, the lunar month against the solar term, and the thirteen time slots Zi Wei uses instead of twelve.","\u002Farticles\u002Fzi-wei-vs-bazi","article",{"src":96,"srcByLocale":97,"alt":99,"width":100,"height":101,"altByLocale":102,"captionByLocale":105},"\u002Fimg\u002Farticles\u002Fzi-wei-vs-bazi.svg",{"tw":98},"\u002Fimg\u002Farticles\u002Fzi-wei-vs-bazi-tw.svg","Two-column comparison of the Zi Wei and BaZi year and month labels on four dates around the 2023 and 2024 new moons.",1280,960,{"zh":103,"tw":104},"两栏对照：2023 与 2024 年朔日前后的四个日期，紫微与八字各自的年、月标签。","兩欄對照：2023 與 2024 年朔日前後的四個日期，紫微與八字各自的年、月標籤。",{"en":106,"zh":107,"tw":108},"立春 and 正月初一 are different boundaries. In 2023 the lunar year turned thirteen days early; in 2024 the solar year turned six days early.","立春与正月初一是两条不同的界线。2023 年农历早翻十三天，2024 年太阳年早翻六天。","立春與正月初一是兩條不同的界線。2023 年農曆早翻十三天，2024 年太陽年早翻六天。",{"topic":110,"articles":145,"tools":178},{"slug":8,"title":7,"eyebrow":111,"description":112,"relatedTools":113,"articleIdeas":114,"seo":119,"sections":123},"Twelve palaces, one ring","A chart of twelve palaces and fourteen main stars, built by counting rather than by judgement. Where 命宫 comes from, why the reading set is always four palaces, how the star ring has only twelve possible forms, and where the calendar this system uses parts from the one BaZi uses.",[8],[115,116,117,118],"The Twelve Palaces in Zi Wei Dou Shu","Empty Palaces in Zi Wei Dou Shu","Zi Wei Dou Shu vs BaZi","How 紫微 Is Placed",{"title":120,"description":121,"path":122},"Zi Wei Dou Shu Guide: Palaces, Stars and Boundaries","How a Zi Wei Dou Shu chart is built: 命宫 placement, the four-palace reading set, twelve star layouts, the 五行局 divisor, and where its calendar parts from BaZi.","\u002Ftopics\u002Fzi-wei-dou-shu",[124,127,130,133,136,139,142],{"heading":125,"body":126},"What a chart is made of, before it is a reading","A Zi Wei chart has three parts and nothing else. There is a ring of twelve palaces, a set of fourteen main stars placed into that ring, and a set of four transformations attached to stars by the year stem and by palace stems. Everything else on a printed chart — auxiliary stars, brightness grades, the twelve growth phases, the decade ranges — is a layer added on top of those three. The reason to separate them is that the first part is arithmetic and the last part is interpretation, and a chart read without that separation cannot tell you which one it is doing. A palace name is a position. It is not a description of a person.",{"heading":128,"body":129},"The ring is fixed, and 命宫 only decides where it starts","The twelve palaces sit in one order: 命宫, 兄弟, 夫妻, 子女, 财帛, 疾厄, 迁移, 交友, 官禄, 田宅, 福德, 父母. Nothing reorders them. 命宫 is counted from 寅 by lunar month and then back by hour, and once it lands, the other eleven follow in sequence. Two inputs set 命宫 and neither is the year or the day, which is why two people born decades apart in the same lunar month and hour share a 命宫 palace even when every star in it differs.",{"heading":131,"body":132},"The reading set is always four palaces, at four, eight and six steps","The palaces read together with 命宫 are found by fixed offsets: 官禄 at four steps, 财帛 at eight, 迁移 at six. Those offsets are not a convention to be memorised but a consequence of branch relations — four and eight land on the two branches that form a three-harmony combination with 命宫, and six lands on its clash partner. The set is closed at four because no fifth palace relates to 命宫 by the same two relations. One result follows immediately and is easy to check on any chart: 夫妻 sits two steps from 命宫 and therefore directly faces 官禄, in every chart ever drawn. 身宫 adds a second structural restriction — shifted from 命宫 by the birth hour, it can reach only six of the twelve palaces and never lands in one about a relative.",{"heading":134,"body":135},"The star ring has twelve possible forms, and empty palaces are part of the arithmetic","The fourteen main stars are not placed one at a time. 紫微 is placed from the bureau number and the lunar day, 天府 is placed as its mirror across the 寅–申 axis, and the remaining twelve sit at constant offsets from those two anchors. Because one position generates the whole ring and that position has twelve values, there are exactly twelve main-star layouts. Fourteen stars into twelve palaces also cannot divide evenly, so every chart carries empty palaces: measured across 1,200 charts, 67 percent have two, 16.5 percent have none and 16.3 percent have four, while 命宫 itself is empty in 16.8 percent. An empty palace is a remainder, and the convention for reading it — borrow from the palace six steps away — is a reading convention, not a transfer of stars.",{"heading":137,"body":138},"The bureau is a divisor, not a label for the person","五行局 is the 纳音 element of the 命宫 stem-branch pair, and its name carries a number: 水二, 木三, 金四, 土五, 火六. That number does two jobs. It is the divisor in the star-placement rule, and it is the age at which the first decade begins, which is why two people born on the same day can enter their first decade years apart. It is not a statement that a person is a water type or a fire type. Reading it as an element label for the personality skips the two mechanical roles it actually performs.",{"heading":140,"body":141},"This system and BaZi do not share a calendar","BaZi turns the year at 立春 and the month at each solar term. Zi Wei turns the year at the lunar new year and takes the lunar month as its month unit. The two boundaries coincide only by accident, and in the gap they disagree: on 22 January 2023 Zi Wei read 癸卯 甲寅 while BaZi still read 壬寅 癸丑, and on 6 February 2024 the positions reversed, with BaZi on 甲辰 丙寅 and Zi Wei still on 癸卯 乙丑. 命宫 moves on the new moon, not on 立春. Both systems also advance the day pillar at 23:00, but Zi Wei names the hour that straddles the change instead of folding it silently into the next day.",{"heading":143,"body":144},"Where to start, and where a reading stops","Start with the ring, not with the stars. If the birth date, hour and gender are ready, the chart tool prints the twelve palaces, the bureau, and the decade ranges, and the first thing worth checking is where 命宫 landed and whether it is empty. From there the structural articles go in order: the palace ring, the empty palaces, the placement arithmetic, and the calendar comparison with BaZi. What none of them support is a claim about a specific outcome. A palace and a star label describe a position in a system; they do not establish health, wealth, relationship quality, or a future event, and a reading that presents them as doing so has moved past what the arithmetic can carry.",[146,156,165,168],{"slug":147,"title":148,"description":149,"category":7,"topicSlug":8,"legacyPath":9,"authorId":10,"publishedAt":11,"updatedAt":150,"summary":151,"relatedTools":152,"seo":153},"zi-wei-twelve-palaces","The Twelve Palaces: What 命宫 Fixes and What It Cannot","The twelve palaces are one fixed ring and 命宫 only sets where it starts, because its two inputs cancel. The twelve questions, the 4\u002F8\u002F6 offsets, and why 命宫 plus 身宫 still leaves two birth moments.","2026-11-01","命宫 is counted from 寅 by lunar month and hour, and because the month counts forward while the hour counts backward the two cancel: 正月 子时 and 二月 丑时 land in the same palace. 身宫 reaches only six palaces, and the pair still narrows the birth moment to two candidates.",[8],{"title":148,"description":154,"path":155,"type":94},"How the twelve palaces form one ring: 命宫 placement and its cancellation, the twelve questions, the four-eight-six offsets, and the six palaces 身宫 can reach.","\u002Farticles\u002Fzi-wei-twelve-palaces",{"slug":157,"title":158,"description":159,"category":7,"topicSlug":8,"legacyPath":9,"authorId":10,"publishedAt":11,"updatedAt":11,"summary":160,"relatedTools":161,"seo":162},"zi-wei-empty-palace","An Empty Palace Is Arithmetic: Fourteen Stars, Twelve Palaces","Fourteen main stars cannot fill twelve palaces evenly, so every chart carries empty palaces. Two is the normal count at 67 percent, and how many there are follows 紫微's position rather than chance.","Across 1,200 charts, 16.5 percent have no empty palace, 67.2 percent have two and 16.3 percent have four. A palace never holds three main stars, and 命宫 itself is empty in 16.8 percent of charts.",[8],{"title":116,"description":163,"path":164,"type":94},"Why every Zi Wei chart has empty palaces, how the count follows 紫微's position, and how borrowing from the opposite palace works.","\u002Farticles\u002Fzi-wei-empty-palace",{"slug":4,"title":5,"description":6,"category":7,"topicSlug":8,"legacyPath":9,"authorId":10,"publishedAt":11,"updatedAt":11,"summary":13,"relatedTools":166,"seo":167},[8,89],{"title":91,"description":92,"path":93,"type":94},{"slug":169,"title":170,"description":171,"category":7,"topicSlug":8,"legacyPath":9,"authorId":10,"publishedAt":11,"updatedAt":11,"summary":172,"relatedTools":173,"seo":174},"zi-wei-star-placement","One Star Decides Thirteen: How 紫微 Finds Its Palace","紫微's palace comes from the bureau number and the lunar day, and the other thirteen main stars follow at fixed offsets from 紫微 and its mirror 天府. Twelve layouts exist in total, and the classical rule reproduces every one.","Take the lunar day as dividend and the bureau as divisor, round up, then step back for an odd addition and forward for an even one. Checked against 1,932 charts with no mismatch, the rule shows the twelve positions are not equally likely.",[8],{"title":175,"description":176,"path":177,"type":94},"How 紫微 Is Placed in Zi Wei Dou Shu","The bureau-and-day arithmetic behind 紫微's palace, 天府 as its mirror across the 寅–申 axis, and why only twelve star layouts exist.","\u002Farticles\u002Fzi-wei-star-placement",[179],{"slug":8,"title":180,"shortTitle":7,"description":181,"category":182,"status":183},"Zi Wei Dou Shu Chart","Enter a Gregorian birth date, time branch, and traditional chart-direction rule to see 12 palaces, stems, branches, stars, transformations, body palace, and decade ranges without personality or event predictions.","Chinese Astrology","live",{"articles":185},[186,200,215],{"slug":187,"title":188,"description":189,"category":190,"topicSlug":191,"legacyPath":192,"authorId":10,"publishedAt":193,"updatedAt":87,"summary":194,"relatedTools":195,"seo":197},"bazi-five-elements-lookup","BaZi Five Elements Lookup","A practical introduction to the five elements in BaZi and how Wood, Fire, Earth, Metal, and Water are used in birth profile interpretation.","BaZi","bazi","\u002Fpages\u002Farticles\u002Fbazi-wuxing-chaxun.html","2025-09-01","The five elements are one of the easiest ways to begin reading BaZi. Learn what each element represents and why balance matters more than a simple good-or-bad label.",[196,89],"bazi-marriage",{"title":188,"description":198,"path":199,"type":94},"Learn how the five elements are used in BaZi birth profile interpretation and relationship compatibility reports.","\u002Farticles\u002Fbazi-five-elements-lookup",{"slug":201,"title":202,"description":203,"category":204,"topicSlug":205,"legacyPath":206,"authorId":207,"publishedAt":208,"updatedAt":209,"summary":210,"relatedTools":211,"seo":213},"moving-day-auspicious-date","Auspicious Moving Day Selection","A practical guide to choosing an auspicious moving day with traditional date selection and modern moving logistics.","Date Selection","feng-shui-cures","\u002Fpages\u002Farticles\u002Fbanjia-ze-jiri.html","zhang-hao","2025-09-19","2026-10-15","Moving day selection works best when traditional timing supports real preparation, safety, cleaning, utilities, and a calm first entry.",[89,212],"qi-men-dun-jia",{"title":202,"description":203,"path":214},"\u002Farticles\u002Fmoving-day-auspicious-date",{"slug":216,"title":217,"description":218,"category":190,"topicSlug":191,"legacyPath":219,"authorId":10,"publishedAt":220,"updatedAt":87,"summary":221,"relatedTools":222,"seo":223},"is-bazi-fortune-telling-accurate","Is BaZi Fortune Telling Accurate?","Examine how birth-data quality, chart rules, school differences, and the Barnum effect shape the perceived accuracy of a BaZi reading.","\u002Fpages\u002Farticles\u002Fbazi-suanming-zhun-ma.html","2025-09-21","Chart calculation and interpretation are two different things, and two methods can disagree on the same chart. The limits that follow cover health, finance, law, and relationship decisions.",[89],{"title":217,"description":218,"path":224},"\u002Farticles\u002Fis-bazi-fortune-telling-accurate",1793614153429]