Your Korean birth chart, read by moonlight.

Saju (사주, “four pillars”) has been practised in Korea for centuries. Rooted in East Asian astronomy, it reads your personality from the moment you were born.

Knock with your birth details

Free, about 30 seconds, true solar time for your birth city.

Any birth city in the world works. Can’t find yours? Pick your time zone instead. Privacy · Walk through the gate with Ha-on

Free, no sign-up. Your chart appears right here.
About 30 seconds. Date, time if you know it, and city.
True solar time for your birth city, anywhere in the world. Daylight-saving history included, every step shown.

Your free chart

I have read your whole chart. Here it is in one line.

Your chart in one line

You might recognise yourself here

Your 2026 at a glance

See the chart behind this reading

Here is where all of that comes from: the moment you were born, written as eight characters.

Your four pillars

Your birth moment written in eight characters: two each for the year, month, day and hour. The top of the day pillar is your core sign.

Top row the sky characters (heavenly stems).
Bottom row the earth characters (earthly branches), each with its zodiac animal.
Day, you the top of this pillar is your core sign (Day Master).

How we worked out your hour

Every character belongs to one of five elements. Let us see how yours are balanced.

Your five elements

Wood, Fire, Earth, Metal and Water: five kinds of energy (growing, shining, holding, sharpening, flowing).

Colours, directions, seasons and flavours are traditional associations, for fun and reflection. They are not health advice.

Roles in your chart

Each of the 7 characters besides your core sign plays a role for you (traditionally the “Ten Gods”, 十神). We count the top of each pillar and the main character hidden in each bottom one.

Keep going

Your Day Master, in full

The Scholar’s ScrollYour ten-year chapters, 2027 month by month, one person by name and your own questions. $24 one-time, no subscription.Get The Scholar’s Scroll See what’s inside

For entertainment and self-reflection. Not medical, legal or financial advice.

Eight characters, written the moment you were born.

Saju turns the year, month, day and hour of your birth into four pillars. Each pillar is a pair of characters, and each character belongs to one of five elements: Wood, Fire, Earth, Metal and Water.

The top character of your day pillar is your Day Master, the element that stands for you. Everything else in the chart is read in relation to it.

Hour癸Water未Goat

Day · you乙Wood酉Rooster

Month壬Water午Horse

Year乙Wood丑Ox

Example: 15 June 1985, 14:30, Korea. Day Master 乙, Yin Wood.WoodFireEarthMetalWater

We show our working.

Your hour pillar follows the sun, not the clock on the wall. So we take the time you give us and correct it for where you were born, using the same steps behind every chart. Your own numbers appear under your chart. No black box.

Your clock time
What the birth certificate says.
14:30
Daylight saving
Your country’s historical rules for that date. Korea had none in 1985.
None
Longitude
How far east or west you were born within your time zone.
−32 min
The season
The equation of time: Earth’s tilted, oval orbit.
0 min
True solar time
The time your hour pillar is read from.
13:58

The same example, worked by the calculator on this page: born 15 June 1985 at 14:30 in Korea.

Ten Day Masters. One of them is you.

There are ten, one yang and one yin for each of the five elements. Open your chart to find yours, or wander through all ten.

Want the whole Scroll?

The Scholar’s Scroll is your chart read for you alone: your dates, your person, your questions.

$24one-time
no subscription

A 20–30 page PDF to keep or give. AI-written from traditional saju rules, for entertainment and self-reflection.

Get The Scholar’s Scroll See what’s inside

What’s inside

Your ten-year chaptersWhere you are now, and the year the next chapter begins.
2027, month by monthMoney, work, love and energy levels, with one thing to do and one to avoid each month.
Your past, checkedThree past years that likely changed you, asked as questions.
You and one personA partner, friend or parent by name: a fixed score and why.
Your three questionsAnswered from your chart, with the rule behind each answer.
Gift, trap, try thisEvery chapter ends with your strength, your pitfall and one thing to do.

Haven’t opened your chart yet?

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