What are the Eight Characters (BaZi)?
The Eight Characters (BaZi) are the Year, Month, Day and Hour pillars — a Heavenly Stem and an Earthly Branch each, eight characters in all — mapping the Five-Element energy of your birth moment.
Common questions about BaZi, the calculation and this app — from the frame of a chart to True Solar Time, the Hour pillar and the symbolic stars.
The Eight Characters (BaZi) are the Year, Month, Day and Hour pillars — a Heavenly Stem and an Earthly Branch each, eight characters in all — mapping the Five-Element energy of your birth moment.
Yes — the app is completely free, calculates instantly in your browser with no sign-up, and can be installed for offline use.
Pillars use True Solar Time and solar-term month boundaries, cross-checked against authoritative sources for the stems, branches, clashes and symbolic stars. Content is for entertainment and cultural interest only.
The Day Master is the Heavenly Stem of the Day pillar — it represents you. The whole chart is read around it: its strength, and from there the Ten Gods and what the chart favours.
True Solar Time is clock time corrected for your birthplace’s longitude and the equation of time. BaZi sets the Hour pillar by true solar time, which can differ from clock time by tens of minutes — enough to change the Hour pillar.
The day is divided into twelve two-hour 時辰 (子 begins 23:00–01:00). The branch is set from your true-solar-time 時辰, and the stem is derived from the Day stem by the 五鼠遁 rule.
神煞 are the traditional auspicious / inauspicious markers — the Nobleman, Peach Blossom, Travelling Horse, Blade and so on — derived by fixed rules between the stems and branches. Our lookups follow mainstream 子平 and the 三命通會.
The interface and every term are available in Traditional Chinese, Simplified Chinese and English; switch anytime and your choice is remembered.
No. It runs straight in the browser, and you can “Add to Home Screen” to install it as an app. Charts are computed on your device, so you don’t need to stay online.
BaZi is a traditional cultural and symbolic system. This app is for cultural learning and self-reflection; its content is for entertainment and reference only, and is not medical, legal, financial or any other professional advice.