Zi Wei Dou Shu Calculator |link| Free Better Jun 2026

Zi Wei Dou Shu is based on the Chinese Lunar Calendar, specifically the Zhengqi (solar terms) and lunar months. Most free calculators use a simplified database from the 1990s. If you were born near a leap month or a seasonal boundary (Li Chun), these calculators will put your stars in entirely wrong palaces. A "better" calculator must handle the complex 19-year Metonic cycle of leap months correctly.

A "better" calculator must address these gaps while remaining completely free and open (or ad-supported but privacy-respecting). zi wei dou shu calculator free better