Last updated: 21 September 2026
Bazi Chart is an independent, self-funded website that calculates traditional Chinese Four Pillars of Destiny (八字) charts from your birth details, corrects them for true solar time, and offers an optional written interpretation. It is run by one person, not a company, and it exists because the free Bazi calculators available in English are mostly inaccurate in ways that matter — wrong solar time, wrong Luck Pillar direction, wrong handling of daylight saving that ended thirty years ago.
The site is operated as an independent project. There is no agency, no content farm and no investor behind it. The person who built it studies the classical Bazi literature and wrote both the chart engine and the guides published here.
We deliberately do not claim credentials we do not have. This is not a licensed profession in any jurisdiction, and there is no certification that would make it one. What we can tell you honestly is where the material comes from.
The methods used here are the mainstream Ziping (子平) tradition — the day-master-centred approach introduced by Xu Ziping in the tenth century and codified in the Song-era compilation Yuanhai Ziping (淵海子平). The earlier three-pillar method of Li Xuzhong (761–813) provides the historical background. The concepts of Day Master strength, the Ten Gods, and the ten-year Luck Pillars that appear throughout our guides are all standard features of that lineage, not inventions of this site.
Where schools genuinely disagree — above all on how the Day Master's strength should be judged — we say so in the text rather than presenting one view as settled. That disagreement is real, it is old, and hiding it would make the guides less useful.
The calculator is not a lookup table. It converts your birth details using the standard IANA timezone database, which means historical daylight saving and timezone changes are applied from the data rather than from a fixed offset per country. It then corrects for longitude and for the equation of time to obtain true solar time, and derives the four pillars from the solar-term calendar.
Two things follow from that which are worth knowing:
We would rather be clear about this on an About page than bury it in terms.
Two things pay for the servers. The first is the optional written reading, priced at $9.90 as a one-off with no subscription. The second is advertising, which appears only on the free guides — never inside a paid reading, never on the checkout, and never on your own report page. We have written about what that means for your data in the Privacy Policy, including the cookie disclosure that advertising requires.
If you find an error in a guide — a wrong solar term date, a mis-stated rule, a broken link — please tell us. Corrections are made and the revision date on the affected page is updated. Genuine mistakes in published reference material are the one thing on this site we would rather hear about than not.