春分 Spring Equinox: spring solar term, March 20-22 春分 · Chūn Fēn

Classical attributes

• Solar position: longitude 0°
• Date range: March 20-22
• Season: spring (middle spring)
• Type: 氣 — Mid-term — within month
• Month branch: 卯 (Rabbit)

Climatic register

Day and night equal; yin and yang balance perfectly. The wood-element energy of spring crests; from this point onward, daylight grows steadily until 夏至.

Hidden stems of the 卯 month branch

The 卯 earthly branch holds these heavenly stems internally — read in BaZi as the “hidden essence” of the month pillar:

• 乙 (Yin Wood, sole)

BaZi relevance

春分 is the mid-term within the 卯 month pillar. The classical balance-point: yin and yang in equilibrium, neither dominant. For BaZi practice, 春分 marks the inflection where the wood-peak energy begins its descent toward the next phase. Charts cast around 春分 often show particularly clean wood-element registers without the heat overlay that follows.

QMDJ (Qi Men Dun Jia) relevance

Same dun sequence as 大寒 — the eastward-charge / visibility / authority register operates during this balance-point of spring. In the QMDJ system, 春分 falls within the 陽遁 (yang dun, forward-rotating expansion) half-year. The three thirds of this solar term map to 陽遁3局 (upper), 陽遁9局 (middle), and 陽遁6局 (lower) respectively. QMDJ consultations made during 春分 carry the dun-period register stacked on top of the solar-term's seasonal energy.

For chart-aware QMDJ reading of a specific consultation made during 春分, see the 18 Dun Periods reference for the relevant dun-period pages, or book a QMDJ forecasting consultation.

Observed register for 春分 births

春分 carries the register of poised balance — equal-day-equal-night neutrality, neither pushing forward nor holding back. Born around 春分 often carries a temperamental balance and an instinct for finding equilibrium under pressure.

Why generic Spring Equinox interpretation fails

The solar term is one structural layer of a BaZi chart, not the whole chart. The actual reading for someone born around 春分 depends on the day pillar (the Day Master), the year and hour pillars, the chart's elemental balance, and the upcoming luck pillars. Generic per-solar-term descriptions can name the foundational seasonal register, but they cannot tell you what your specific chart says. Master Sean Chan’s BaZi consultation reads the full chart against your specific question.

• Identify whether your birth or your question's timing falls within 春分 (March 20-22). For BaZi practice, this mid-term sits within the 卯 month pillar without changing it.
• Read the 春分 register against your full chart. The solar term contributes a foundational layer; the rest of the chart determines actionable guidance.
• Plot your chart via the free BaZi Calculator to see how 春分 interacts with your day, year, and hour pillars.
• Book chart-aware reading via BaZi consultation for high-stakes questions. Generic per-term reference is no substitute for the consultation.