Ding Fire is yin fire, the fourth heavenly stem, and the Day Master when Ding sits on the day pillar. A Ding Fire Day Master chart takes its name from that day stem alone. Confirm Ding first on the BaZi Calculator before any talk of seasonal strength or character.
What does a Ding Fire Day Master name?
The ten heavenly stems run Jia, Yi, Bing, Ding, Wu, Ji, Geng, Xin, Ren, Gui. Ding Fire is fourth: fire in element, yin in polarity. Day Master means the heavenly stem of the day pillar. Once that stem is Ding, the other three pillars are read as support, pressure, output, or wealth relative to fire.
Yin fire is pictured as a lamp, a candle, or a hearth: light that works in a room, easy to shield and easy to snuff. Bing, the third stem, is noon sun. Month branch, hour stem, and hidden stems can still feed or cool that lamp. A Ding Fire Day Master label names the day stem. It does not promise rank, marriage, or exam results.
Spot Ding on the day stem, copy the month branch, then judge strength. Personality lines come last and stay labeled as folk summary.
How do I confirm Ding on the day stem?

The English tool draws four columns once the civil date is in. Read left to right as year, month, day, hour. Each column carries a heavenly stem on top and an earthly branch below. The Day Master is the top line of the day column only. When that glyph is 丁 / Ding, the chart is a Ding Fire Day Master.
- Enter the civil birth data as recorded. Include the clock hour when you know it; leave the hour blank when you do not.
- Find the day column, the third in a year-month-day-hour row, and read only the heavenly stem on top.
- If that stem is Ding, keep this page. If it is Bing, Yi, or any other stem, open that stem’s own page.
- Copy the month branch from the same printout. Strength talk starts from that branch together with the day stem.
A Ding year is the year stem. A Ding hour is the hour stem. Neither one is the Day Master. People born from 23:00 to midnight sit on a school boundary, because 子时 opens at 23:00; check which rule the tool is using. If the hour is missing, the day stem can still be named, and the strength picture stays unfinished.
How does the month branch grade Ding Fire?
Folk BaZi judges the Day Master first by the month branch. Fire warms through late spring and peaks in summer. Water months in winter press a small flame. Wood months in spring can feed it. Metal months in autumn ask fire to work as output. Earth months sit between those turns. Water can snuff a candle while the same water only cools a noon sky.
| Month branch |
Season |
Ding Fire tendency |
| Yin 寅, Mao 卯 |
Spring |
Wood feeds fire; the lamp is often supplied |
| Chen 辰 |
Late spring |
Earth with leftover wood; mixed |
| Si 巳, Wu 午 |
Summer |
Fire season; Ding is often strong |
| Wei 未 |
Late summer |
Earth with leftover fire; still warm |
| Shen 申, You 酉 |
Autumn |
Metal season; fire is spent as output |
| Xu 戌 |
Late autumn |
Earth; fire storage in many stem lists |
| Hai 亥, Zi 子 |
Winter |
Water season; a lamp is often pressed |
| Chou 丑 |
Late winter |
Earth with leftover water; still cool |
The table is a seasonal sketch. Two Ding Fire Day Masters born in Wu (午) can still read differently once hour, year, and hidden stems are on the page. Month-branch season is the first cut, not a numerical score. Readers who stop at “summer equals strong Ding” skip the hour and the year.
Which folk notes travel with lamp fire?
Almanac shops often pin a character sketch to the day stem. For Ding, the usual folk list follows the lamp image: warmth at close range, a dislike of drafts, a smaller stage than Bing’s sun.
- Warm in a small room, and slower to fill a public square
- Attentive to detail, like a flame that must be trimmed
- Drawn to close work and people who sit near the light
- Paired in memory with Bing Fire as lamp versus sun
Those lines are cultural summaries. They are not a psychological inventory, and they do not forecast career or household luck. Keep the list as a memory aid for yin fire, then return to the pillars.
How does Ding Fire sit next to Bing Fire and Yi Wood?
Bing Fire Day Master is yang fire, the third heavenly stem, pictured as the sun at noon. Ding is yin fire, the fourth, pictured as lamp or hearth. A Bing chart reads wood as fuel for a high flame. A Ding chart reads the same wood as oil for a smaller light. If the calculator shows Bing on the day stem, stop this article and open that page.
Yi Wood Day Master is yin wood, the second heavenly stem, pictured as vine or grass. Wood produces fire, so Yi often appears in Ding charts as resource: the fuel that keeps the lamp alight. If the calculator shows Yi on the day stem, open the Yi page. A Yi day with a Ding year is still a Yi chart.
How should I read the chart after Ding is confirmed?
After Ding is confirmed on the day stem, work in a short order. First copy the month branch and place it on the seasonal table above. Second, note whether other fire stems or fire branches appear, which can support Ding, and whether water stems or water branches appear, which can press it. Third, see whether wood is present as oil for the lamp. Fourth, leave personality adjectives until those checks are written down.
Keep the three English pages in one sitting: the BaZi Calculator for the pillars, the Bing Fire Day Master page if yang fire is the day stem, and the Yi Wood Day Master page if vine wood is the day stem.
Where does a Ding Fire Day Master page stop?
A Ding Fire Day Master page can define the stem, show where to find it, sketch seasonal strength, and keep folk personality lines in their place. It cannot promise luck, rank, or a safe year. Charts with the same day stem diverge as soon as month, hour, and year change. Hour unknown is a real gap: the day stem still stands, and the strength picture is unfinished. Confirm the day stem, read the month branch, and leave luck claims in the drawer.