BaZi day master · 5 of 10
Yang Earth Day Master (戊土) in BaZi
戊 is yang earth — the mountain, the high ground, the dry bank. It is read as mass and stability: the thing other things get built on. If your day pillar begins with 戊, this is the character the rest of your chart is measured against.
The short version
戊 is earth as structure — what everything else stands on.
Earth is the element with four branches (辰 戌 丑 未), which is why 戊 is read as a chart that has somewhere to be rather than a chart that moves.
Is your day master 戊?
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Enter your birth date — nothing else is required for this answer. If the result comes back with a different stem, the profile for it is one click away at the bottom of the page.
How it’s calculated
- 1
Take the day pillar
The day pillar advances exactly one step per calendar day with no gaps and no leap corrections. That continuous count is what makes it reliable: it does not depend on the calendar reform, the timezone or the season.
- 2
Read its heavenly stem
The stem of that pair is the day master. 戊 is the 5th of the ten stems, so “is my day master 戊?” reduces to one question about one character — and it can be answered from the date alone.
- 3
Set it as the reference
Once 戊 is fixed, the other seven characters stop being a list and become relationships. Every stem in the chart is named by how it stands to 戊 — that is the table on this page, and it is different for each of the ten stems.
The full rule set — every convention, in order, with the engine field names — is published on the methodology page.
What 戊 means as a day master
戊 is earth at yang: the mountain, the plateau, the raised bank of a river. Every other element is legible as a thing in motion or a thing that grows; 戊 is the surface those things happen on. Classical practice reads it as reliability, endurance and the willingness to hold a position — and treats the corresponding cost honestly, which is immobility.
己 is its counterpart: the field, the soil in the pot, the earth that is worked. The difference is one of function rather than quantity. 己 provides conditions for things to grow in; 戊 provides the ground they stand on. In practice 戊 charts are read for weight and 己 charts for cultivation, and both are read with the season attached — earth is the element most obviously altered by the month it is born in.
The ten gods, read from 戊
The ten gods are not ten things — they are five relations, each of which comes in two polarities, and the relation is always measured from the day master. With 戊 as the reference the five relations resolve as follows: 土 itself is the Peer, Fire generates 土 and is the Resource, Metal is what 土 produces and is the Output, Water is what 土 controls and is the Wealth, and Wood is what controls 土 and is the Officer.
The table below is produced by the engine from that rule alone — the element relation, multiplied by whether the two stems share a polarity. Nothing in it is memorised and nothing in it is interpreted. This is the reason a chart can be re-read by anyone: change the day master and all ten names change at once, in a way that is checkable rather than a matter of opinion. On the chart in the worked example below, 戊 is the day stem itself, so the four visible stems around it each carry one of these names.
What feeds 戊, and what spends it
A chart is not read by counting elements — it is read by what each element does to the day master. Fire (丙 丁) generates 土, so it is the Resource: what supplies 戊 without being asked. 戊 己 is the Peer. Metal (庚 辛) is what 土 produces, so it is the Output: energy that leaves as work, expression or craft. Water (壬 癸) is what 土 controls, so it is the Wealth. Wood (甲 乙) is what controls 土, so it is the Officer — the element that acts on 戊 and therefore carries the chart's pressure.
Five relations doubled by polarity gives the ten gods, and that is the whole structure. What it does not give you is a verdict on whether 戊 has enough support, because that judgement depends on how much you weight the month of birth, whether hidden stems count fully, and whether rootedness outranks raw count — and three competent practitioners can disagree. So we print the counts and the support/drain split, and leave the weighing to the reading rather than hiding a weighting model inside a score.
Where 戊 turns up in the branches
戊 appears inside five branches — 寅, 辰, 巳, 申 and 戌 — more than any other stem. That is why earth is described as carried by the transitions: it is scattered through the branches that end each season, rather than concentrated in one.
This matters more than it sounds. Four of the eight characters in a chart are branches, and each branch conceals between one and three stems, so a chart can hold 土 energy in a form that never appears on the surface. The list below is generated from the same fixed hidden-stem table the calculator uses — you can check it branch by branch.
The common misreading
"Mountain" gets read as immovable, and people then read every luck pillar that moves the chart as bad news. Classical practice treats 戊 as needing an outlet: a mountain with nothing draining it is not stability, it is accumulation. The stem says the chart holds ground; it does not say the chart should never leave it.
A worked example
Every page on this site that needs a worked example uses the same approach: a real birth moment, run through the engine at build time, with the numbers printed so you can reproduce them. This page's example is 2 February 1990, Taipei.
Input
- Date
- 2 February 1990
- Time
- 10:00
- Place
- Taipei, Taiwan
- Time zone
- Asia/Taipei
Nearest 节
Next: 立春1990-02-04 · 10:14
Year pillar 己巳 — this date is before 立春, which is what sets it.
Day master of this chart
戊 — Yang Earth
Day pillar 戊戌 · 纳音 平地木 · image the mountain
All four pillars, computed at build timeyear · month · day · hour
Year 年
己巳
大林木
Month 月
丁丑
涧下水
Day 日
戊戌
平地木
Hour 时
丁巳
沙中土
- Woodabsent
- Fire450%
- Earthself450%
- Metalabsent
- Waterabsent
Surface tally 8 of 8 — and no Wood, no Metal, no Water at all. Support 8, drain 0, counted across the four stems and four branches and not weighted by season. A single absent element is a fact about this one chart, not a verdict on it.
Ten consecutive days, ten day masters
2 February 1990 gives 己巳 丁丑 戊戌 丁巳 — the day pillar is 戊戌, so the day master is 戊. It belongs to a run of ten consecutive dates, 30 January to 8 February 1990, which produce all ten day masters exactly once, because the day pillar advances one step per calendar day and ten steps cycle through all ten stems. That same run straddles the exact minute 立春 fell in 1990 (4 February, 10:14 local), so the earlier dates sit in the 己巳 year and the later ones in the 庚午 year — which also flips the luck-pillar direction, since direction follows the year stem's polarity. On this chart the surface tally is Wood 0 · Fire 4 · Earth 4 · Metal 0 · Water 0 — support 8, drain 0, and the luck pillars run backward from 丙子.
Engine v1.1.0 · lunar-javascript@1.7.7 · these four pillars and this tally reproduce exactly from the input above, in your browser or ours.
The full stem map, computed
These ten names are not a list to memorise — they are computed by one rule: the element relation between the two stems, multiplied by whether their polarities match. The table is produced by the engine from that rule, and it changes completely the moment the day master changes away from 戊.
Peer
Same element as the day master
- 戊比肩 · Companion
- 己劫财 · Rob Wealth
Output
What the day master produces
- 庚食神 · Eating God
- 辛伤官 · Hurting Officer
Wealth
What the day master controls
- 壬偏财 · Indirect Wealth
- 癸正财 · Direct Wealth
Officer
What controls the day master
- 甲七杀 · Seven Killings
- 乙正官 · Direct Officer
Resource
What produces the day master
- 丙偏印 · Indirect Seal
- 丁正印 · Direct Seal
戊 against itself is a Peer of the same polarity, so it is always Companion 比肩. The other nine stems divide across the five relations with two in each — which is why there are exactly ten names and never eleven.
The hidden-stem table, filtered to 戊
A stem does not have to appear on the surface of a chart to be present — every branch carries one to three hidden stems, and this is where the engine finds them. The list below is generated from the same fixed table the calculator uses.
- 寅Tiger · Yín木 · early springsecondary hidden stem
- 辰Dragon · Chén土 · late springprimary hidden stem
- 巳Snake · Sì火 · early summersecondary hidden stem
- 申Monkey · Shēn金 · early autumnsecondary hidden stem
- 戌Dog · Xū土 · late autumnprimary hidden stem
辰 戌 carry it as the primary hidden stem; 寅 巳 申 carry it as a lesser one. A lesser position is not a weaker claim on the element — position matters for weighting, and weighting is the step where published schools disagree.
The other nine day masters
Each stem has its own page, and they are read against each other rather than in isolation — 甲 against 乙, 丙 against 丁. Whichever one is yours, the comparison is usually where the meaning is.
Questions
- What does a Yang Earth day master mean?
- 戊 is earth at the yang pole: the mountain rather than the field. The chart is read for weight and endurance — what it holds, and how it behaves under load. It describes a starting material, not a fixed temperament.
- Why does earth have four branches?
- Because 辰 戌 丑 未 sit at the end of each season and are classified as earth rather than as the season they close. That is also why earth is described as the element of transitions, and why the month of birth matters more for earth day masters than for most.
- Is 戊 supposed to be unambitious?
- No — that is a misreading of the stability image. Classical practice reads 戊 as a chart that accumulates and holds rather than one that moves quickly, and it treats the need for motion as coming from the rest of the chart. Wood, in particular, is what turns earth into something that produces.
- What generates 戊, and what does 戊 generate?
- Fire generates earth (ash, and the classical claim that heat creates soil), so a 丙 or 丁 in the chart is a Resource relative to 戊. Earth generates metal, so 庚 and 辛 are Output. Both relationships are shown in full on this page, computed against your day master rather than quoted.
Next
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己 is the most accommodating of the ten stems — and that is a description, not a compliment.
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OpenFull chart
Get your own four pillars
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BaziPattern provides AI-generated readings for entertainment and cultural exploration purposes only. Readings are not predictions, or medical, legal, or financial advice.