Bazi (Eight Characters) Chart

Birthplace determines time zone, historical DST, and true solar time — it is not optional.

Birth Time (Local Clock Time)

Enter the time on the birth certificate. The system auto-adjusts for Daylight Saving Time—do not subtract an hour.

Year Month Day Hour Minute

Gender

Only used to determine the forward/reverse sequence of luck pillars; does not affect the four pillars. You can still generate a chart without specifying, but it will lack the luck pillars.

Not specified Male Female

Birthplace

Determines time zone and longitude. ⚠️ Many cities share names (e.g., 6 San Franciscos, 2 Londons); please verify the time zone.

Common Cities

Calculation Options True Solar Time Correction Corrected to 'Solar Noon as Zi Hour' based on birthplace longitude and equation of time. Practices vary; this site disables it by default. Zi Hour Day Rule Only affects Day Pillar for 23:00–23:59 births.