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When & where were you born?

Your birth city sets the longitude — the key to true solar time. Historical daylight-saving is handled automatically.

Name (optional)

Date of birth

Time of birth

I don't know my birth time

Don't know the exact time? Check the box above — we'll read your three known pillars (day, month, year), which is still a full personality reading. Or see how to find your birth time — it's easier than you'd think.

Birth city

City not listed? Pick the nearest listed city in the same time zone — within ~150 km the solar-time difference is a couple of minutes and almost never shifts a pillar.

Gender (for luck-pillar direction)

🌞 True solar time · 📍 longitude-corrected · ⏱ auto daylight-saving · deterministic engine
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When & where were you born?

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