FAQ · Getting started

What do you need from me?

A birth date and, for a full chart, a birth time and a birthplace. The hour pillar depends on the birth time, and the birthplace supplies the longitude used for the true-solar-time correction; giving only a date will put the hour pillar wrong, which is why both are asked for. If the time is uncertain, the site can search back from the date and the pillars you do know.

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