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Contextual source review

Twenty-Four Solar Terms

Calendrical and temporal systems

Names across languages

中文
二十四節氣
English
Twenty-Four Solar Terms
日本語
二十四節気
한국어
이십사절기

Alternate names: 24 solar terms; èrshísì jiéqì

Reviewed definition

Twenty-Four Solar Terms (二十四節氣) is a technical term within feng shui and Yijing-related knowledge systems. Specifically, Twenty-four points in the year defined at fifteen-degree intervals of solar longitude, comprising twelve sectional terms and twelve major terms. They form a solar timing framework rather than a purely lunar calendar. This library explains it within the calendrical and temporal systems domain and distinguishes historical description, lineage rules, observable spatial data and later symbolic interpretation.

Historical context

The modern meaning of this term accumulated through classical texts, commentaries, regional practice and later systematization. Review used “The 24 Solar Terms” for historical, textual or material context; that source does not establish that every later lineage uses the term identically.

Modern-use note

Today, Twenty-Four Solar Terms may be used in terminology teaching, source indexing, case annotation, compass or landform documentation and comparison of lineage rules. Professional records should state edition, directional reference, scale, date, observations and uncertainty so another reader can trace the reasoning.

日本語

現代では、用語教育、文献索引、事例注記、地形・方位資料の説明に利用できる。版、流派、尺度、測定基準、日付と不確実性を明示し、結論だけでなく根拠を追跡できる形で記録する。

한국어

현대에는 용어 교육, 문헌 색인, 사례 주석, 지형·방위 자료 설명에 활용할 수 있다. 판본, 유파, 척도, 측정 기준, 날짜와 불확실성을 밝혀 결론뿐 아니라 근거를 추적할 수 있게 기록한다.

Limitations and cross-cultural caution

This term records a cultural, historical or lineage-specific interpretive framework. It must not be presented as established scientific causation or a guarantee of health, wealth, relationships, examinations or investment outcomes. Building, structural, fire, environmental, medical, legal and financial matters require applicable rules, measurements and qualified advice.

Cross-cultural writing should retain 二十四節氣 with a transliteration or conventional translation. Japanese “二十四節気”, Korean “이십사절기” and English “Twenty-Four Solar Terms” may have different local ranges; similar labels do not make methods, historical authority or practical conclusions identical.

Reviewed sources

Citations show what the review relied on. Contextual coverage supports description or tradition, not scientific causation.

The 24 Solar Terms

Government educational reference explaining the twenty-four terms through solar longitude and calendar structure.

GovernmentEducation · Hong Kong Observatory · 2019 · Solar longitude and calendrical structure

Open source