A practitioner charges S$300–500 for this. Here, it's free.
Identifying your badges across 117 constitutional patterns
Your birth time falls near a 时辰 boundary
Chart A · Clock time
Generating constitutional summary...
Chart B · Solar corrected
Generating constitutional summary...
Read both summaries. One will feel like you. The other will feel close but not quite right. That recognition is the signal. Pick the one where you think: "that is how I actually move through the world." There is no wrong answer. Both charts are real. Only one is yours.
知己 reads your BaZi (four pillars) and ZWDS (purple star astrology) chart. Your constitution, your current season, your prescription. Enter your birth details to begin.
Enter Birth Details · 输入生辰
Reading for · 读盘对象
You are the interpreter. The reading addresses the chart, not you. Data is not saved to your knowledge base.
The more precise your birth data, the deeper your reading. Birth time matters most.
Optional: Chinese name, lunar calendar, solar time ▼
Classical BaZi and ZWDS use local solar time. For Singapore, clock time is ~65 min ahead — this can shift the hour pillar and all ZWDS palaces.
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Maximum window is 12 months.
Reading your window...
zhiji.io
Your Current Decade · 大限
Your reading is being prepared. BaZi (four pillars) and ZWDS (purple star astrology) cross-referenced into one constitutional reading. This takes about 20 seconds.
At a practitioner, this costs S$79 to S$139. Here, it is free and complete.
Bonus credits unlock after extended use. Invite a friend — earn 50 credits when they get their first reading. Credit usage log in Plans panel.
31 MARCH 2026
Stripe live. Paywall messaging. 248 guide, star, hexagram, and pattern pages. New pricing panel.
21 MARCH 2026
Constellation overview: see your full circle mapped by element. 117 individual badge pages. Birth hour unknown mode: get your BaZi reading without knowing your birth time. PDF export for all readings. Typographic texture across the interface.
20 MARCH 2026
Timing readings: find your best dates for any decision. Day Master section at top of your reading. Current decade card. Daily, monthly, and yearly pillar strips.
18 MARCH 2026
知己 launched. Full BaZi + ZWDS readings. Relationship reads. Compatibility readings. Conversation that remembers. 117 talent badges. 甲子日 壬午时.
Feedback · 反馈
Something broken? Something missing? Tell us directly.
You earn 50 credits when someone you invite gets their first reading.
Free
Free
50 credits · one-time gift
A first spark. Enough to feel the warmth.
Trial
S$8.88
200 credits · one-time
One month of full access.
Explorer Most Popular
S$10.88 /month
200 credits · resets monthly
Full access. Most popular.
Companion
S$28.88 /month
600 credits · resets monthly
For when you need more.
Top-Up
S$8.88
150 credits · never expire
One-time. Use when you need them.
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Explore · 探索
Everything 知己 can do for you.
YOUR CHART · 你的命盘
Your Reading · 解读
Your full BaZi and ZWDS constitutional reading
Your Chart · 命盘
Four Pillars, Palace Grid, stars, and decades
Handbook · 手册
213 patterns across three systems. See which are yours.
Daily Pillar · 流日
Today's elemental weather against your chart
Decade Overview · 大限
Your current decade: palace, phase, stars
CONVERSATION · 对话
Ask 知己
Ask anything about your chart. Every conversation is remembered.
RELATIONSHIPS · 关系
Relationship Read · 关系
Run someone else's chart and see how you connect
Compatibility · 合盘
Your relationship reading with someone in your constellation
Your Constellation · 人际星盘
See your full circle: who's in it, how they connect
TIMING · 择日
Find My Dates · 择日
Find the best window for a decision using your chart
MORE · 更多
PDF Export
Download any reading as a branded PDF
PDF export is available on every reading. Look for "Export PDF →" below your reading.
Settings · 设置
Update your profile, birth data, language, or clear data
CONVERSATION · 对话
Your reading is complete. This is your conversation with 知己. Ask anything about your chart, your decade, your stars, or the people in your constellation.
