Dashu (solar term)
twelfth solar term of traditional East Asian calendars

The traditional Chinese calendar divides a year into 24 solar terms. Dàshǔ (Chinese: 大暑; pinyin: dàshǔ), Taisho, Daeseo, or Đại thử (Chinese and Japanese: 大暑; pinyin: dàshǔ; rōmaji: taisho; Korean: 대서; romaja: daeseo; Vietnamese: đại thử; "major heat") is the 12th solar term. It begins when the Sun reaches the celestial longitude of 120° and ends when it reaches the longitude of 135°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 120°. In the Gregorian calendar, it usually begins around 22 July (23 July Chinese lunisolar calendar time) and ends around 7 August.
“Dashu (solar term)” enters the record as twelfth solar term of traditional East Asian calendars. Crown Archives preserves that source wording while asking what Dashu, solar and term can confirm, complicate or overturn.
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