Four Pillars structure
Read the year, month, day, and hour pillars as one chart rather than four isolated labels.
Four Pillars
BaZi Calculator
A proper BaZi chart starts with clean birth data. Prepare the Four Pillars, check true solar time context, then identify the Day Master, Ten Gods, Five Elements, and timing anchors.
BaZi chart calculator
Enter birth details to generate the Four Pillars, Day Master, Five Elements, Ten Gods, Na Yin, and hidden stems in the browser.
Chart result
YearMonthDayHour
Enter birth details and calculate to preview a chart.
Four Pillars
Calibrate the chart before interpreting
- Enter birth date and local birth time.
- Add birthplace so time zone and true solar time can be checked.
- Review the Four Pillars, Day Master, Ten Gods, Five Elements, and luck cycles.
Stem and branch detail
Check Heavenly Stems, Earthly Branches, hidden stems, Na Yin, and empty branches before interpretation.
Reading anchors
Use Day Master, Five Elements, and Ten Gods as the first set of anchors for the chart.
Timing context
Move from the natal chart into Da Yun and annual timing only after the base chart is clear.
Chart accuracy checklist
BaZi output is only as reliable as the birth data and calculation assumptions behind it. Use these checks before interpreting a result.
Time boundaryIf birth time is close to a two-hour boundary, verify the local time and true solar adjustment.
BirthplaceCity and longitude can change the hour pillar when the recorded time is near a cutoff.
Unknown hourWithout birth time, keep the hour pillar open and avoid detailed timing claims.
School settingsDifferent practitioners may use different rules for solar time and day boundary handling.
Reading desk
Use the chart for the question in front of you
Start with the birth data, keep the chart visible, and choose the next layer by the actual question: structure, timing, relationship, or annual context.
Build the chart
Confirm the four pillars, birth time assumptions, and Day Master before attaching meaning to symbols.
Read the pattern
Connect Day Master, Five Elements, and Ten Gods so the reading is not carried by one isolated branch or stem.
Add timing
Compare Da Yun and annual pillars only after the natal chart is clear; timing changes emphasis, not the whole method.
Compare two charts
For relationships, compare both charts, spouse palace signals, element balance, branch interactions, and timing overlap.
Before interpretation
Chart checks before interpretation
Before reading personality, timing, relationship, or annual themes, first make the calculation assumptions explicit. A useful chart result gives you enough context to know which parts are stable and which parts should stay tentative.
Birth data
Date, local time, birthplace, time zone, and solar-time assumptions decide the pillars before any reading begins.
Chart anchors
Day Master, month branch, visible stems, hidden stems, Ten Gods, Five Elements, Na Yin, and empty branches are checked together.
Reading boundary
If the hour is unknown or close to a boundary, keep the hour pillar tentative and avoid over-reading late-life or children themes.
Next step
After the chart is stable, choose the page that matches the question: Day Master, Ten Gods, Five Elements, Da Yun, compatibility, or the annual layer.
Interpretation anchors
FAQ
These questions cover the parts of a BaZi chart that most often change the reading: time accuracy, true solar time, missing birth time, and how symbols connect.
Does true solar time change a BaZi chart?
It can change the hour pillar when the recorded birth time is near a two-hour boundary. Check birthplace, time zone, longitude, and the school of calculation before reading details.
What should I do if birth time is unknown?
Keep the hour pillar open. You can still study the year, month, and day pillars, but spouse palace details, children palace themes, and some timing signals should stay tentative.
Why do Day Master, Five Elements, and Ten Gods need to be read together?
The Day Master sets the reference point, Five Elements show balance and movement, and Ten Gods describe functional roles such as wealth, officer, resource, output, and peers.
Can the same chart have different readings?
Yes. Different schools may handle solar time, day boundaries, hidden stems, and useful elements differently. Treat the output as a structured starting point, then compare assumptions.
How should I use Da Yun and annual luck after calculating the chart?
Read Da Yun as the larger ten-year layer and annual luck as the yearly trigger. A useful reading compares both with the natal chart instead of treating one year pillar as a fixed outcome.