You ask your mother what time you were born. She remembers the morning. An aunt remembers lunch. Your birth certificate has no time recorded.
It is tempting to choose noon just to complete the form. That choice creates a precise-looking chart from information you do not actually have.
Keep the uncertainty visible
BaZi uses birth information to construct four pillars, including an hour pillar. When the time is unknown, that part of the input needs to stay unknown.
Write down the source of each piece of information: a birth record, a family recollection, or an approximate range. If two people remember different times, keep the two accounts. You do not need to resolve the disagreement by guessing.
Check records you already have access to
A hospital record or another official birth document may contain a recorded time. Ask the relevant institution about its records process. Availability varies, especially for older births.
If you find a time, keep the original record. Let the practitioner know if it is rounded or approximate.
Ask what can be discussed with the known details
A consultation can begin by explaining the limits of the available chart. Ask which parts of the discussion rely on the missing time and how uncertainty will be handled.
On the homepage calculator, choose “I don’t know my birth time.” The result shows the supported chart information. A limited result is a reason to keep the conversation careful.
Do not let a form decide your history
A required field can make a guess feel harmless. Later, the invented time may appear in screenshots, saved profiles, and reports as if it came from a record.
Save the facts you have and the uncertainty that comes with them. That gives every later conversation a sounder starting point.
Further reading: Joey Yap on the four pillars used in BaZi.
Master JudithBaZi and classical Feng Shui consultant, author, and speaker. In professional practice since 2010. About the practice