A short cultural guide
What Is a Bazi Chart? Four Pillars Explained
Direct answer
A Bazi chart is a traditional Chinese arrangement of eight calendar symbols: a heavenly stem and earthly branch for the birth year, month, day, and hour. It is also called the Four Pillars.
Eight characters, four pairs
Each pillar pairs one of ten Heavenly Stems with one of twelve Earthly Branches. Four pillars contain eight characters, which is the literal meaning of Ba Zi. The year, month, day, and hour each supply a pair. These symbols belong to a repeating traditional calendar cycle; the branch animals are familiar from the Chinese zodiac.
Knowing a zodiac animal alone does not give the whole chart. Under this calculator's convention, year/month use solar-term instants, while day/hour use the local civil date and clock.
Day Master and Five Elements
The day's Heavenly Stem is commonly called the Day Master. The Five Elements are wood, fire, earth, metal, and water: traditional symbolic categories associated with stems and branches. This calculator shows simple visible counts, without assigning a health, luck, compatibility, or personality score.
Labels such as Direct Wealth or Seven Killings are traditional technical names for stem relationships, often called the Ten Gods. They are not literal claims about money, danger, a deity, or future events.
What a chart does not establish
A chart is not scientific evidence about your identity or future. Cultural interpretations vary by school and practitioner. Treat them as optional reflection prompts, not facts about what you can achieve or whom you should marry. No chart should determine medical treatment, financial choices, legal decisions, or other major commitments.
Calculate with the assumptions visible
Use the free Bazi calculator to see the symbols, then review the method, timezone rules, unknown-time behavior, and test examples. The engine comes from lunar-javascript; the software produces calendar values, not proof of a predictive system.