The Day Master is the Heavenly Stem sitting on your day pillar ( Ri Kindred / 日元 ). It anchors Element psychology in Ba Zi — like a sun sign backbone, tuned for Five Elements rather than planets.
Approximate pillars (education only)
Day Master (日元): 庚 · Read archetype notes →
Uses simplified Gan Zhi boundaries (Gregorian approximation). HexAstral iOS applies solar terms, optional true solar time, and Luna conversion for prod readings.
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