Major Heat
Oppressive heat can slow both judgment and stamina. Keep essential work light, drink enough water, and postpone major decisions until properly rested.
In detail
Major Heat begins when the Sun reaches 120 degrees of apparent ecliptic longitude, meaning its measured seasonal position, and remains active until Start of Autumn. It is a midterm rather than a sectional term, so it does not change the BaZi month pillar. Its reading joins peak summer heat with heavier physical expenditure, which is why endurance and decision quality take priority. The classical Collected Explanations of the Seventy-Two Seasonal Manifestations explains the name through heat reaching its extreme; Start of Autumn instead marks the turn toward contraction.
FAQ
- When does Major Heat begin and end?
- Major Heat starts at the exact seasonal node and lasts until Start of Autumn. It describes the full interval rather than only the calendar date, although the local clock time can differ by location; check the year's solar-term timetable when the boundary matters.
- Does Major Heat change the BaZi month pillar?
- No. Major Heat is a midterm, while the BaZi month pillar changes at sectional terms, so this node describes the peak-heat phase without opening a new month pillar; use the exact Start of Autumn time when checking the next pillar boundary.