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Title: Lidong  
Author: World Heritage Encyclopedia
Language: English
Subject: Pig (zodiac), Solar term, Sexagenary cycle, Solar terms, Winter solstice
Publisher: World Heritage Encyclopedia


The traditional East Asian calendars divide a year into 24 solar terms (節氣). Lìdōng (pīnyīn) or Rittō (rōmaji) (Chinese and Japanese: 立冬; Korean: 입동 ; Vietnamese: Lập đông ; literally: "start of winter") is the 19th solar term. It begins when the Sun reaches the celestial longitude of 225° and ends when it reaches the longitude of 240°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 225°. In the Gregorian calendar, it usually begins around November 7 and ends around November 22.

Lidong signifies the beginning of winter in East Asian cultures.


  • 水始冰, 'Water begins to freeze' - the initial stages of water bodies freezing over.
  • 地始凍, 'The earth begins to harden'
  • 雉入大水為蜃, 'Pheasants enter
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