BaZi · Blog

Do I Need to Repurchase If Birth Data Changes?

Deep Oracle Practitioner Desk · 2026-09-19 · 7 min read

When a birth record is corrected, the question of whether a new report must be purchased depends on whether the change alters the Four Pillars. The report’s conclusions are built directly on the Four Pillars, so a change to the underlying birth data can invalidate the original reading. Whether a replacement is needed is therefore not a billing formality but a structural matter: if the chart changes, the report changes.

改资料为什么会牵动整份报告

Every conclusion in the report is derived from the Four Pillars. The Four Pillars are calculated from the year, month, day, and hour of birth according to the traditional calendar. If the birth information is changed, the Four Pillars may shift entirely. When the Four Pillars shift, the original report no longer corresponds to the same chart. A report written for one set of pillars cannot simply be patched by editing a few sentences; the interpretive basis has changed. For this reason, a correction to birth data is treated as a re-analysis rather than a minor revision.

The issue is especially acute because the Four Pillars are not read as isolated pieces. The year, month, day, and hour pillars interact with one another. A change in one pillar can affect how the other pillars are interpreted, including the balance of elements and the relationship between stems and branches. When the hour pillar changes, the affected annotations are not limited to the hour itself; anything tied to that pillar in the full reading may need to be rewritten. When the year or month pillar changes, the scope is broader still.

哪几种修改会让命盘整个换掉

Not every correction has the same weight. Some modifications replace the chart altogether. The clearest case is a change to the date of birth. If the day is wrong, the day pillar is different, and the entire structure of the reading shifts. A date change is usually not a small correction; it produces a different chart.

A second common case involves confusion between the lunar calendar and the solar calendar. If the birth date was first entered as a lunar date but treated as a solar date, or vice versa, and is later corrected, the resulting date can move by weeks or even months. This kind of correction often crosses seasonal boundaries and can change the month pillar, the year pillar, or both. The original report cannot be reused because the corrected date belongs to a different calendrical position.

A third case is time-zone conversion. If a birth time is recorded in one time zone and then converted incorrectly, the hour may be off by one or more hours. When the corrected conversion moves the time across a two-hour boundary in the traditional hour system, the hour pillar changes. If the conversion error is large enough to affect the date, the day pillar may also change. Cross-time-zone corrections therefore need to be checked carefully against the original clock time and the place of birth.

哪几种修改不影响四柱

Some corrections do not affect the Four Pillars. If only the clock time is changed but the new time still falls within the same traditional two-hour period, the hour pillar remains the same. In that case the Four Pillars are unchanged, and the original report still corresponds to the same chart. A small adjustment of a few minutes that does not cross an hour boundary is usually harmless.

The traditional hour system divides the day into twelve two-hour periods, each associated with an Earthly Branch. If the corrected clock time crosses from one two-hour period into the next, the hour pillar changes. When the hour pillar changes, the annotations linked to that pillar also change. This is a more limited change than a date correction, but it still means the original report no longer matches the chart in full.

出生日期跨过立春或跨过当月的交节时刻时,年柱或月柱改变,影响范围比时柱大得多

A date correction that crosses the beginning of spring or the monthly node has a larger effect than an hour change. In the traditional system, the year pillar is not determined by the first day of the first lunar month but by the beginning of spring. If a birth date is corrected across the beginning of spring, the year pillar changes. The month pillar is likewise determined by the solar terms, not by the first day of the Gregorian month. If a corrected date crosses the relevant node for that month, the month pillar changes.

When the year or month pillar changes, the scope of the affected material is much wider than an hour-boundary correction. The year pillar and month pillar carry weight in many parts of the analysis, including the broad structure of the chart and the relationship with the day master. A report built on the wrong year or month pillar tends to differ in substantial ways, so a replacement is usually necessary.

重出一份的三种常见计费方式

When a corrected birth record requires a new report, the fee is not always the same across services. Three billing practices are common.

The first is full repurchase. Under this model, any change to the birth information is treated as a new order, and the customer pays the full price again. This is the simplest rule but can feel harsh when the correction is small.

The second model is a limited free reissue. The service allows one free regeneration within a fixed period after the original purchase, such as seven days. After that window closes, the normal price applies. This model balances fairness to the customer with protection against repeated revision requests.

The third model is unconditional free reissue. Some services regenerate the report at no charge whenever the birth information is corrected. This is less common and is usually offered only where the original error is attributable to the service or where the report is generated automatically at low marginal cost.

本站的规则与时限

The rule on this site is stated on the report page. After the birth information is changed, the report can be regenerated free of charge once within seven days. After seven days, the standard price applies.

This means the free reissue is not unlimited. If the birth data is corrected within the seven-day window, one replacement report can be obtained without further payment. If a second correction is needed after the free reissue has been used, or if the correction is made after the window has passed, the report is charged at the original price. The seven-day period runs from the time of the change, as stated on the report page.

The rule is designed to give enough time to verify the birth details after purchase while preventing an open-ended cycle of corrections. It applies to the report itself, not to the act of entering data before purchase. Unlocking the report before confirming the birth information therefore carries a practical risk: if the information is later found to be wrong and the seven-day window has passed, a replacement will be paid.

正确的顺序是先核对再解锁

Because of this structure, the correct order is to verify the birth information first and unlock the report second, not the other way around. If the report is unlocked first and the birth details are confirmed afterward, a correction may require a new report. If that correction falls outside the free-reissue period, the user pays twice for what could have been a single report.

Verifying the birth information requires only three checks. The first is the calendar: whether the recorded date is lunar or solar. The second is the time zone: whether the clock time is the local time at the place of birth and whether any conversion has been applied correctly. The third is the source of the clock time: whether it comes from a birth certificate, hospital record, family memory, or another source, and how reliable that source is.

None of these three checks requires payment. They can be completed before the report is unlocked. If the calendar, time zone, or clock time is uncertain, it is cheaper and safer to resolve the uncertainty first. Once the birth information is confirmed as accurate, the report can be unlocked with a much lower chance that a later correction will be needed. When a correction is unavoidable, the seven-day free reissue window provides a limited safety margin, but it is not a substitute for checking the data in advance.

Do I Need to Repurchase If Birth Data Changes?