A surprising number of people do not know their birth time, especially those born abroad, adopted, or in families that did not think to write it down. It is not the end of a saju reading. Three pillars still carry most of the information, and there are ways to narrow the hour. Here is what changes without it and how to work around it.
What the hour pillar carries
The hour pillar is read for children, late life, and the hidden or private side of a person. It also supplies one of the eight characters to the element count, so a missing hour can shift a balanced-looking chart to slightly unbalanced or vice versa. In luck-cycle calculation the hour is not used, so your ten-year cycles are unaffected.
What stays reliable with three pillars
- Your day master and its strength in its season (from the month).
- Six of the eight characters, so the element balance is mostly right.
- Your ten-year cycles and yearly luck.
- Career and wealth stars, which live mainly in the month and day pillars.
- Compatibility, which leans on day pillars and element supply.
In practice, readers say a three-pillar reading is about eighty percent of a full one.
Three ways to recover the hour
- Documents. Hospital records, birth certificates in many countries, baby books, the card on the hospital bassinet in old photos.
- Family memory anchored to events. “Was it before or after lunch?” “Was it dark?” “Did Dad have to leave work?” Anchoring to meals and daylight usually narrows it to a two-hour block, which is exactly what saju needs (the day is divided into twelve two-hour branches).
- Rectification. A reader tests candidate hours against known life events (a marriage year, a move, a career change) and keeps the hour that fits. Less precise than a record but often convincing.
The “around noon” problem
Two-hour branches change on the odd hour (11 to 1, 1 to 3, and so on), so “around noon” straddles a boundary. Readers handle it by running both and seeing which matches you; often one is clearly right. The same goes for “midnight,” which straddles the day change, and readers will check the day pillar both ways.
Time zones and daylight saving
Charts use local solar time. Korea has used a single time zone since 1961 with no daylight saving, but people born in the US, Europe or Australia in summer need the daylight-saving hour subtracted, and people born far from their zone’s meridian need a longitude correction. Good calculators do this from the birthplace; SAJUBY asks for the city for this reason.
How to enter it
If you know the two-hour block, enter the middle of it. If you know nothing, use the “time unknown” option: the reading will be built from three pillars and will say so, rather than inventing an hour.
