The Five Bureaus · 五局
In Zi Wei Dou Shu (紫微斗数), your bureau (局) is the number that governs how your entire chart unfolds. It determines when your first decade starts, how the stars are placed across your twelve palaces, and the rhythm of your life's major transitions.
Everyone has one bureau. It never changes. It's calculated from your birth year stem and your Life Palace branch — the intersection of when you were born and where 紫微 (the Emperor Star) lands in your chart.
There are five bureaus, each tied to one of the Five Elements.
水二局 · Water 2 Bureau
Element: Water | Starting decade age: 2 | First decade runs: Age 2–11
The earliest starter. Your first decade activates before most children form conscious memories. By the time others begin their first decade at age 5 or 6, you've already absorbed an entire decade of palace energy.
Water 2 Bureau charts process life through depth. The number 2 is the smallest bureau number — the rhythm is fast, the cycles turn over quickly, and the chart's owner often feels like they're "ahead" of their peers in emotional processing, not because they're smarter, but because their chart started running earlier.
| Decade | Age Range |
|---|---|
| 1st | 2–11 |
| 2nd | 12–21 |
| 3rd | 22–31 |
| 4th | 32–41 |
| 5th | 42–51 |
| 6th | 52–61 |
| 7th | 62–71 |
| 8th | 72–81 |
What Water 2 means in practice: You've had more decade transitions by any given age than anyone with a higher bureau number. A 35-year-old with Water 2 is in their 4th decade. A 35-year-old with Fire 6 is still in their 2nd. You've seen more seasons. The depth comes from repetition — not wisdom gained once, but patterns confirmed across multiple cycles.
木三局 · Wood 3 Bureau
Element: Wood | Starting decade age: 3 | First decade runs: Age 3–12
Wood 3 Bureau charts grow through expansion. The element is growth itself — upward, outward, seeking light.
| Decade | Age Range |
|---|---|
| 1st | 3–12 |
| 2nd | 13–22 |
| 3rd | 23–32 |
| 4th | 33–42 |
| 5th | 43–52 |
| 6th | 53–62 |
What Wood 3 means in practice: Career decades tend to align with conventional milestones more closely than Water 2. Your 3rd decade (23–32) covers the early career building years. The rhythm feels "normal" — which is itself a feature. Wood grows steadily. It doesn't shock. It accumulates.
金四局 · Metal 4 Bureau
Element: Metal | Starting decade age: 4 | First decade runs: Age 4–13
Metal 4 Bureau charts operate through structure and refinement. The element is precision — cutting, shaping, deciding.
| Decade | Age Range |
|---|---|
| 1st | 4–13 |
| 2nd | 14–23 |
| 3rd | 24–33 |
| 4th | 34–43 |
| 5th | 44–53 |
| 6th | 54–63 |
What Metal 4 means in practice: The 3rd decade (24–33) is typically the period where Metal 4 charts begin making the structural decisions that define their adult life. Metal doesn't drift into things. It decides. The decade transitions feel like clean cuts — clear endings, clear beginnings.
土五局 · Earth 5 Bureau
Element: Earth | Starting decade age: 5 | First decade runs: Age 5–14
Earth 5 Bureau charts build through patience and accumulation. The element is stability — holding, containing, grounding.
| Decade | Age Range |
|---|---|
| 1st | 5–14 |
| 2nd | 15–24 |
| 3rd | 25–34 |
| 4th | 35–44 |
| 5th | 45–54 |
| 6th | 55–64 |
What Earth 5 means in practice: The rhythm is unhurried. Compared to Water 2, you experience fewer decade transitions by any given age. This isn't a disadvantage. Earth builds slower and holds longer. What Earth 5 charts construct tends to outlast what faster-cycling charts produce.
火六局 · Fire 6 Bureau
Element: Fire | Starting decade age: 6 | First decade runs: Age 6–15
Fire 6 Bureau charts express through visibility and intensity. The element is illumination — heat, light, exposure. The starting age of 6 is the latest of all five bureaus.
| Decade | Age Range |
|---|---|
| 1st | 6–15 |
| 2nd | 16–25 |
| 3rd | 26–35 |
| 4th | 36–45 |
| 5th | 46–55 |
| 6th | 56–65 |
What Fire 6 means in practice: Fire 6 charts are the late bloomers of ZWDS — not because they lack capability, but because their chart takes the longest to cycle through each decade. The advantage is that each decade gets more time. More time to absorb the palace's lessons. Fire doesn't rush. It burns until the light has shown everything there is to see.
How Your Bureau Is Calculated
Your bureau is determined by two factors: your birth year's Heavenly Stem (天干) and your Life Palace's Earthly Branch (命宫地支). The intersection maps to one of the five bureaus through a classical lookup table.
The Life Palace position depends on your birth hour — which is why birth time matters in ZWDS. Two people born on the same day but at different hours can have different bureaus. Different bureau = different life rhythm.
What Your Bureau Doesn't Tell You
Your bureau determines timing, not content. It tells you when each decade starts — not what happens in it. The content comes from the stars that sit in that palace, the Four Transformations that activate, and the interactions between your natal chart and the decade's energy.
The bureau is the clock. The stars are the story.