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. 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. 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?
In Korea, your family register (가족관계증명서) or hospital birth record often lists it; parents' memory helps too. 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