BaziSphere · Calculator

Create your BaZi chart

Enter your birth date and time, then choose the UTC offset at your birthplace. Longitude is optional.

Year
Month
Day
Hour
Minute

Cities show standard time unless marked as daylight saving; confirm the offset for your birth date.

Longitude correction (optional)

Enter the longitude of your birthplace; leave blank to skip longitude correction.

About time zones and longitude

Cities show standard time unless marked as daylight saving; confirm the offset for your birth date. Places in the options are references only; selecting one does not automatically track historical time zones or daylight saving time. The default time zone is UTC-5. Choose the UTC offset that applied at your birthplace and birth date, including daylight saving time. The calculator does not detect daylight saving time automatically. Longitude is optional: east is positive and west is negative (for example, New York is -74). If provided, it is used for true solar time correction.

Four Pillars / True solar time / AI assisted interpretation