BIRTH TIME RECTIFICATION
Birth time rectification
When you are not sure of the birth hour, the light outside, mealtimes, the household routine and life experiences give a top three by score. Your experiences and results are not saved automatically; download a snapshot before you refresh.
- Birth details
- Rough time
- Round 1
- Round 2
- Result
BIRTH TIME RECTIFICATION
Birth time rectification: how to narrow down the hour pillar when the birth hour is unknown
Because the hour pillar of a Four Pillars chart changes with the birth hour, birth time rectification works back from clues to the hours still possible: this tool does not replace a birth record, but lists the hours that can hold on that day, scores each against what the family remembers and what happened in life, and shows the top three by relative score.
- Recall rules hours out first: the light outside, mealtimes and the household routine are weighed by who said them, and hours that clearly do not fit are set aside.
- Life experiences only order what is left: career, education, money, relationships, moves and children, entered as facts whose year is remembered.
- The result is a top three, not a confirmed birth time. Scores are relative marks from 0 to 100, not probabilities.
How the top three is reached
01
List the candidate hours
The day is split into candidates by birth date and place. Within one candidate all four pillars are the same; the split points are where a pillar changes, such as solar-term days, the late Rat hour, and the gap between daylight saving and standard time.
02
Rule hours out with recall
The light outside is worked out from sunrise and sunset on that day. Mealtimes and the household routine are clues only. What a mother or someone present said clearly carries more weight than a personal impression, and answers that contradict each other give no verdict.
03
Order what is left with experiences
Only experiences whose year is remembered take part; “don’t remember” is skipped and never counted against an hour. The result is then recomputed with each kind of experience removed in turn, to see whether first place holds.
How far the result can be trusted
Recall rules hours out and sets the base score. The experience part is still research: on cases with a documented birth time its rules have not yet been shown to beat chance, so the ranks are leads, not a judgement. The most reliable evidence remains a birth certificate, hospital records or an old family register.
No questions are asked about the course of the birth or other medical details. The calculation runs in the browser, and the experiences and the result are not saved automatically.
Questions
Is the estimated hour accurate?+
It should not be treated as a settled answer. Recall can rule out hours that clearly do not fit; the experience rules are not yet shown to beat chance, so the page gives a top three with a stability note. When a birth record exists, the record decides.
Does it work with no clues at all?+
Yes, but without recall the order rests on experiences alone and the page marks the result as close to chance. Asking family what the light, mealtime or household routine was at the time helps a lot.
What details are needed, and are they stored?+
A birth date, sex and birthplace; the time can be left empty. The calculation is done in the browser and the page does not store the experiences or the result, so download a snapshot before refreshing. A chosen candidate can be saved to My charts, and kept long-term once signed in.