Saju without a birth time

Yes — you can read most of your Saju without a birth time. Three of the four pillars (year, month and day) come from your date alone, and your Day Master — the character that represents you — is one of them. Only the hour pillar needs your birth time. When it's missing, Gwiraedang leaves the hour blank rather than inventing one.

What you can still read

Your Day Master: The day pillar's top character — your core self — comes from the date, so it's always readable.
Year, month & day pillars: Three of the four pillars, with their stems and branches, the Five-Element balance among them, and the Ten Gods between them.
Ten-year luck cycles: Your luck pillars (대운) are built from the month pillar and your birth date — readable without the hour.

What needs the hour

The hour pillar: The fourth pillar itself — its stem and branch — needs your birth time and the true solar time at your birthplace.
Late-life & children themes: The hour pillar traditionally speaks to later life and children, so those readings are softer without it.
The full element count: Two of the eight characters are missing, so the five-element balance can shift once the hour is added.

Is a Saju reading accurate without the birth time?

Three of the four pillars are exact, so the core of your chart — your Day Master, your Five-Element leanings and your luck cycles — reads clearly. Only the hour pillar is missing, so anything that leans on it is read more gently. Gwiraedang also won't declare an element 'absent' from your chart when the blank hour could have supplied it — an unknown stays unknown. It's a real reading, just with one pillar held back rather than guessed.

Should I guess my birth time?

We don't recommend it, and Gwiraedang won't do it for you. Traditional practice does include hour rectification (추시) — working backwards from life events and temperament to estimate the hour. It's an old craft and a specialist's art, but an estimate is still an estimate, so we never write a guessed pillar into your chart. A wrong hour produces a wrong (but confident-looking) pillar, which is worse than an honest blank. If you only know roughly (e.g., 'morning'), treat any hour-based reading as tentative.

How can I find my birth time?

The hospital birth certificate is the surest source — it records the time of birth. Delivery records and a mother's maternity handbook (the Korean 산모수첩) may have it too, and parents' memory ('it was before dawn') narrows it down. If you find it later, just add it — the three pillars you already have won't change, and the hour pillar fills in.

Read your chart — time optional

Tick “time unknown” and you still get three solid pillars. Free.

Read my Saju

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