"Why read tea leaves when you can read the actual position of the sun?"
Welcome to the world's most unnecessarily accurate Ba Zi calculator! We're talking astronomical precision that would make ancient Chinese astronomers weep with joy (or confusion about why we need 3 decimal places).
This isn't your grandmother's Ba Zi calculator that thinks October 9th is always Rooster month. Oh no. We calculate the ACTUAL position of the sun, because if you're going to divine someone's path, you might as well get the astronomy right.
- 🔭 Real Astronomy - Calculates sun's ecliptic longitude to ±0.001° (because ±1° is for quitters)
- 📐 Geometric Precision - 24 Solar Terms mapped to exact 15° segments of Earth's orbit
- 🌍 Timezone Aware - From Baker Island to Auckland, we got you covered
- 🎨 Element-Colored Animals - Watch your zodiac animals glow in their elemental colors
- 📱 Mobile First - All 4 pillars fit in one screenshot for maximum social media flex
- 🧮 Pure Mathematics - No calendar shenanigans, just beautiful geometric truth
Just open bazi-calculator-app.html in your browser. That's it. No npm, no webpack, no drama.
We believe in the radical idea that web apps should just... work.
Every Ba Zi calculator claims to be accurate. We PROVE it.
October 9, 1967 - The day that separates the real ones from the pretenders. Most calculators say it's Rooster month. We know better. The sun hadn't reached 195° yet, so it's still Monkey month.
Don't believe us? Check NASA. We'll wait.
Maybe you shouldn't! But if you're here, you probably:
- Love unnecessary precision in ancient divination systems
- Appreciate when math meets mysticism
- Want to know if you're REALLY a Fire Monkey or just cosplaying as one
- Need to settle that argument about whether your friend was born in Rat hour or Ox hour
- Run a web shop and think this makes excellent window dressing (we see you 😉)
- HTML - The bones
- CSS - The beauty
- JavaScript - The brains
- Math - The truth
- No frameworks - The freedom
- No cookies - The privacy
- No tracking - The respect
Dark mode by default because we're not monsters. Green accents because money... I mean, prosperity. Animated progress bars because static UIs are so 2019.
Ba Zi (八字) means "Eight Characters" - your cosmic ID card based on birth time. Each pillar (Year, Month, Day, Hour) has a Heavenly Stem and Earthly Branch. Together they supposedly reveal your destiny, personality, and whether you should buy that cryptocurrency.
We just make sure the astronomy is correct. The rest is between you and the universe.
Found a bug? The sun's position off by 0.002°? We take these things VERY seriously.
- Can make the animals dance
- Know the EXACT moment of Cold Dew 1967 from an authoritative source
- Have better color filters for the element emojis
- Can explain why anyone needs this level of accuracy
MIT - Because ancient Chinese wisdom should be free, even when unnecessarily precise.
- Toybreaker - The visionary who demanded astronomical accuracy
- Claude Opus 4.1 - The AI who did the math homework
- JUNGLESTAR - The power behind the throne
- Ancient Chinese Astronomers - The real OGs
- The Sun - For being exactly where we calculated it would be
Remember: This calculator tells you the exact astronomical conditions at your birth. What you do with that information - whether you become emperor of your destiny or just have a really accurate party trick - is entirely up to you.
Now go forth and calculate with confidence, knowing your Monkey is truly a Monkey and not a confused Rooster.
Built with 💚 and an unhealthy obsession with astronomical precision
Not responsible for existential crises caused by discovering you've been the wrong zodiac animal all along