How do I find my day master?

Your day master is computed from your exact date, time and place of birth (using true solar time). Use the free BaZi / Day Master calculator to find yours instantly.

Is a Yin Wood day master strong or weak?

Either — strength depends on the rest of your chart (the supporting and draining elements around your day master), not on the stem alone. The calculator tells you whether yours is strong or weak and which elements are favourable.

Fortune Synthesis · BaZi Day Master

The Yin Wood Day Master · 乙 the vine and flower

Q: What does a Yin Wood day master mean?

In BaZi, your day master is the Heavenly Stem of your day pillar — the core "you". Yin Wood (乙) is the vine and flower: Adaptable, gentle and quietly tenacious — you grow around obstacles like a climbing vine rather than through them. Diplomatic and people-smart, you survive and thrive by flexibility.

Adaptable, gentle and quietly tenacious — you grow around obstacles like a climbing vine rather than through them. Diplomatic and people-smart, you survive and thrive by flexibility.

At your best

Resilient, charming, able to flourish in almost any environment.

What to watch

Over-reliance on others for support; indecision when you should stand firm.

Strong vs weak Yin Wood

A strong Day Master runs best with an outlet. Your energy is abundant — the work is to channel it outward into expression, ventures, leadership and giving, rather than hoarding it. Your favourable elements are the ones that let you spend energy productively.

A weak Day Master isn't a flaw — it means you run best when supported. The work is to lean on resources, mentors, allies and replenishment rather than grinding alone. Your favourable elements are the ones that feed and strengthen you.

Whether your Yin Wood runs strong or weak depends on the whole chart, not the stem alone — the calculator works it out for you.

What is a day master?

In BaZi (八字, the Four Pillars of Destiny), your day master is the Heavenly Stem of your day of birth — the single character that represents you at the centre of your chart. Everything else in BaZi is read in relation to it. There are ten day masters, one for each stem; 乙 is Yin Wood.

Find your own day master — free

Computed from your exact birth date, time and place (true solar time). No sign-up needed.

Calculate my day master →

The other day masters

Learn more: What is your BaZi day master? · Strong vs weak day master · Get your free five-system reading →. For reflection and entertainment; not professional, medical, legal, or financial advice.