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Leap-month birthZi Wei chart castingLunar birthday

How to cast a Zi Wei chart for a leap-month birth? Keep the original date first, then compare settings.

KarmaSpace translation

2026-10-22 · 玄居 KarmaSpace Editorial Team · 編輯方針
An AI concept diagram illustrating the cross-checking of leap-month data in calendars and notes; it is not an actual calendar table for any particular year.

A leap month does not mean adding an extra month to a birthday.

The leap month in the lunar calendar is an arrangement by which the calendar reconciles the cycles of years and months. It does not mean a person has an extra month in their fate calculation, nor does it mean their birth is abnormal or their fortune is worse. First confirm whether you were born in an ordinary month or in a leap month with the same name; the original date should be kept in full.

"The fourth month of a certain year" and "the leap fourth month of a certain year" are different pieces of date information, and the word "leap" cannot be omitted. First verify the Gregorian date against reliable reference data, and then discuss what method a fate-calculation service uses to handle it; this will be clearer than changing the month first.

Whether a tool takes Gregorian or lunar dates: check the fields first.

If a tool takes Gregorian dates and converts to the lunar calendar itself, enter the verified Gregorian date; there is no need to add the leap month onto the next month yourself. If a tool takes lunar dates directly, you must confirm whether it has a leap-month option, and what that option means and what rules it follows.

For example, if the original record is a certain day in the leap fourth month, you cannot simply fill in a certain day in the fifth month just because the interface has no leap-month field. That would change the input facts, not merely change how they are displayed. When an interface cannot clearly express the data, stop drawing personal conclusions and check the instructions first.

Different ways of handling leap months are chart-calculation methods, not birthday corrections.

Different Zi Wei Dou Shu methods may use different palace-placement or month-handling approaches for leap months, and some distinguish the earlier and later parts of the month. You cannot simply see a mnemonic such as "the fifteenth day" and change the data for every tool yourself; you must confirm whether this is the algorithm it actually uses, and whether other fields are linked to it.

When comparing, keep the original date, the tool name, the rule description and the output results. This article does not declare any one school to be the only correct answer, nor does it treat a report that seems more like a person's experience as evidence that the birthday should be rewritten.

If two charts differ, list the differences rather than repeatedly trying until you find one you like.

First verify the Gregorian and lunar dates, the leap-month marker, the birth time, the place and the time settings, then look at where the life palace, body palace and stars differ. Do not compare only a passage of personality text; different data and rules can naturally produce different results.

If the original record itself is in doubt, check reliable data first and mark what is unknown; you cannot work backwards from a chart to infer a definite birth date. For family birth documents, personal privacy should also be masked; there is no need to publish complete certificates to ask netizens to choose a chart.

Further reading and notes

You can view the fields at Zi Wei tool, and read The difference between the life palace and the body palace. This article was produced with AI assistance, and the accompanying image is not an actual calendar table; calendar verification can confirm dates, but cannot prove the effectiveness of fate-calculation predictions.

常見問題

問Can the leap fourth month simply be filled in as the fifth month?

You should not change it this way yourself. Keep the original date and enter it correctly according to whether the tool takes Gregorian or lunar dates and its leap-month rules.

問Does being born in a leap month make one's fate more special or worse?

Good or bad fortune cannot be inferred from a calendar marker. A leap month is a calendar arrangement, not a score of a person's worth or life outcomes.

問What if the tool has no leap-month option?

First check whether it takes Gregorian dates and converts automatically; if it still cannot be entered clearly, check the method description or seek confirmation, and do not casually change the month.

資料來源

  1. Hong Kong Observatory: Lunar calendar · A leap month is a calendar arrangement that reconciles the solar and lunar calendars; it does not equal good or bad fortune in fate calculation.
  2. Hong Kong Observatory: Gregorian and Lunar Calendar Conversion Table · For verifying the original date; it cannot replace a tool's leap-month chart-calculation rules.