An educational BaZi case study of Barack Obama's chart, presented as a learning example without absolute prediction claims. Obama's birth time is on official record (1961-08-04, 19:24 Honolulu — Rodden AA), so this is a complete four-pillar reading — Year 辛丑, Month 乙未, Day 己巳, Hour 甲戌, Day Master 己 (yin Earth), born in the Earth-heavy 未 month.
The defining structure: a heavy Earth self channeled out through expression and reined in by public authority. The Output stars (食伤, Metal — Eating God 辛 + Hurting Officer 庚) are the Favorable Element, the smooth outlet that turns a deep inner world into persuasive language ("Hurting Officer matched with Resource" — talent backed by learning). Officer and Killings are both exposed (Direct Officer 甲 at the hour + Seven Killings 乙 at the month) — a structure naturally aligned with public office, with "Eating God controlling Seven Killings" wielding pressure through intellect, and the 甲–己 stem combination raising the Day Master toward formal authority. "Peers & Rivals" (比劫, the over-full Earth) is the chart's main caution — an outward dynamic of allies and contenders, not inward self-conflict.
This is a pattern study for learning how Four Pillars structure is read — not a prediction, and not medical, legal, or financial advice. Want to read your own chart? The BaZi calculator is free.