子丑合土: Rat-Ox Hex (BaZi Branch Six Harmonies) 子丑合土

Configuration

子丑合土 involves the following branches:

• 子 Rat
• 丑 Ox

Combined element: earth (with water register)

Classical register

Water-earth partnership: 子 (Rat, peak winter water) hexes with 丑 (Ox, late-winter storehouse). The classical reading emphasises stable accumulation through receptive partnership — the water's intelligence supports the earth's holding capacity. Favourable for steady long-term financial partnerships and accumulation-oriented business alliances.

How to read 子丑合土 in a chart

The 子丑合土 configuration activates when the involved branches appear together in the four pillars of a BaZi chart (year, month, day, or hour pillar). Practitioners read the configuration's register against where in the chart it appears: a clash between year and month pillars often relates to the family of origin and early-life environment; between day and hour, to spouse / offspring matters; in the luck-pillar transitions, to the timing of the configuration's activation across decades. Beyond presence-or-absence, the configuration's strength depends on the chart's broader elemental balance and the Day Master's structural needs.

Why generic Rat-Ox Hex interpretation fails

The 子丑合土 register is one structural feature of a BaZi chart, not the whole chart. Whether the configuration helps or hurts a specific consultant depends on their Day Master, the chart's elemental balance, the Useful God, and the luck pillar currently operating. The same configuration can be highly favourable for one chart (e.g., a clash that releases stuck energy) and challenging for another (e.g., a clash that destabilises a needed pillar). Master Sean Chan’s BaZi consultation reads the full chart against your specific question.

• Identify whether 子丑合土 is present in your chart. Plot your full four pillars via the free BaZi Calculator and check which branches appear in the year, month, day, and hour positions.
• Check the configuration's location in the chart. 子丑合土 reads differently depending on which two pillars hold the involved branches — year-month vs. day-hour vs. spanning across non-adjacent pillars.
• Read the configuration against your Day Master. Whether 子丑合土 helps or harms your chart depends on whether the elements involved support or oppose the Day Master's needs.
• Book a chart-aware reading via BaZi consultation for high-stakes questions — the configuration's actual impact requires reading the full chart context, not just the pattern itself.