The Ten Day Masters
Your Day Master is the core self at the heart of your Four Pillars chart — one of the ten Heavenly Stems, from the Tall Tree to the Dew. Find yours, and read its nature in full.
Explore all ten Day Masters
Which Day Master are you?
The free Bazi Calculator computes your Four Pillars from your birth date, time, and place — solar-term accurate, with your Day Master and 10-year Luck Pillars.
Solar-term accurate · 10-year Luck Pillars · No sign-upHow the Day Masters relate
The ten stems are not isolated — they flow into and check one another through the Five Element cycles. Each element generates the next (Wood feeds Fire, Fire makes Earth, Earth bears Metal, Metal holds Water, Water grows Wood) and controls another (Wood breaks Earth, Earth dams Water, Water quenches Fire, Fire melts Metal, Metal cuts Wood). Your Day Master's relationships to the other stems in your chart — who feeds it, who drains it, who it controls — are the heart of a Bazi reading.
Within each element, the yang stem is the large, outward, forceful expression (the Sun, the Ocean, the Mountain, the Axe, the Tall Tree) and the yin stem is the contained, inward, refined one (the Lantern, the Dew, the Garden Soil, the Jewel, the Vine). Same element, opposite temperament.
Frequently Asked Questions
What is a Day Master in Bazi?
Your Day Master is the Heavenly Stem that sits on the Day Pillar of your Bazi (Four Pillars) chart — the stem of the day you were born. It represents your core self, the 'you' around which the rest of the chart is read. There are ten possible Day Masters: the five elements (Wood, Fire, Earth, Metal, Water) each in a yang and a yin form.
How do I find my Day Master?
Your Day Master is calculated from the Chinese sexagenary calendar using your birth date adjusted to the correct solar term. The free Cosmos Daily Bazi Calculator does this automatically — enter your birth date, time, and place and it returns your full Four Pillars, including the Day Master.
What are the ten Day Masters?
Yang Wood (甲, the Tall Tree), Yin Wood (乙, the Vine), Yang Fire (丙, the Sun), Yin Fire (丁, the Lantern), Yang Earth (戊, the Mountain), Yin Earth (己, the Garden Soil), Yang Metal (庚, the Axe), Yin Metal (辛, the Jewel), Yang Water (壬, the Ocean), and Yin Water (癸, the Dew).
Is one Day Master better than another?
No. Each Day Master is simply a different core nature with its own strengths and shadows — there is no 'best' stem. What matters in Bazi is the balance of the whole chart: whether your Day Master is supported or weakened by the other pillars, and which elements your chart needs. The Day Master is the starting point of that reading, not a ranking.