What you need before you start
Before starting, confirm that dates, times, and other details are accurate, and note which items are required or optional. Do not replace missing required information with a guess.
Birth date
date required
Establishes the calendar and timing data used by the calculation.
Example: 1990-06-15
What to enter: Use a valid calendar date that is not in the future.
If you leave it out: The tool cannot produce a reliable result without this required value.
Local birth time
time required
Adds the time pillar or time-dependent detail when the method supports it.
Example: 12:00
What to enter: Use a valid local time; leave it blank only when this item is optional.
If you leave it out: The tool cannot produce a reliable result without this required value.
