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 Water 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 Water Day Master · 癸 the dew and mist

Q: What does a Yin Water day master mean?

In BaZi, your day master is the Heavenly Stem of your day pillar — the core "you". Yin Water (癸) is the dew and mist: Gentle, perceptive and imaginative — like dew or mist, you're soft, subtle and quietly pervasive. Intuitive and adaptable, you sense undercurrents others can't.

Gentle, perceptive and imaginative — like dew or mist, you're soft, subtle and quietly pervasive. Intuitive and adaptable, you sense undercurrents others can't.

At your best

Deeply perceptive, creative, able to slip through any obstacle.

What to watch

Overthinking and elusiveness; let people actually reach you.

Strong vs weak Yin Water

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 Water 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; 癸 is Yin Water.

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.