Guyu

The traditional East Asian calendars divide a year into 24 solar terms. Gǔyǔ, Kokuu, Gogu, or Cốc vũ is the 6th solar term. It begins when the Sun reaches the celestial longitude of 30° and ends when it reaches the longitude of 45°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 30°. In the Gregorian calendar, it usually begins around April 20 and ends around May 5.

Guyu
Chinese name
Traditional Chinese穀雨
Simplified Chinese谷雨
Literal meaninggrain rain
Vietnamese name
Vietnamese alphabetcốc vũ
Chữ Hán穀雨
Korean name
Hangul곡우
Hanja穀雨
Japanese name
Kanji穀雨
Hiraganaこくう
Solar term
  Longitude    Term    Calendar
  Spring
  315°  Lichun  4 – 5 February
  330°  Yushui  18–19 February
  345°  Jingzhe  5 – 6 March
   Chunfen  20–21 March
  15°  Qingming  4 – 5 April
  30°  Guyu  20–21 April
  Summer
  45°  Lixia  5 – 6 May
  60°  Xiaoman  21–22 May
  75°  Mangzhong  5 – 6 June
  90°  Xiazhi  21–22 June
  105°  Xiaoshu  7 – 8 July
  120°  Dashu  22–23 July
  Autumn
  135°  Liqiu  7 – 8 August
  150°  Chushu  23–24 August
  165°  Bailu  7 – 8 September
  180°  Qiufen  23–24 September
  195°  Hanlu  8 – 9 October
  210°  Shuangjiang    23–24 October
  Winter
  225°  Lidong  7 – 8 November
  240°  Xiaoxue  22–23 November
  255°  Daxue  7 – 8 December
  270°  Dongzhi  21–22 December
  285°  Xiaohan  5 – 6 January
  300°  Dahan  20–21 January

Pentads

Each solar term can be divided into 3 pentads (候). They are: first pentad (初候), second pentad (次候) and last pentad (末候). Pentads in Guyu include:

China

  • First pentad: 萍始生, 'Duckweed begins to sprout'.[1]
  • Second pentad: 鳴鳩拂其羽, 'Cuckoo shakes off wings'.[1]
  • Last pentad: 戴勝降于桑, 'Hoopoe perches in mulberry trees'.[1]

Japan

  • First pentad: Ashi hajimete shōzu (葭始生), 'Reed begins to bud'.[2]
  • Second pentad: Shimo yamite nae izuru (霜止出苗), 'Frost ends and rice seedlings to grow'.[2]
  • Last pentad: Botan hanasaku (牡丹華), 'Peony blooms'.[2]

Date and time

Date and Time (UTC)
yearbeginend
辛巳 2001-04-20 00:35 2001-05-05 10:44
壬午 2002-04-20 06:20 2002-05-05 16:37
癸未 2003-04-20 12:02 2003-05-05 22:10
甲申 2004-04-19 17:50 2004-05-05 04:02
乙酉 2005-04-19 23:37 2005-05-05 09:52
丙戌 2006-04-20 05:26 2006-05-05 15:30
丁亥 2007-04-20 11:07 2007-05-05 21:20
戊子 2008-04-19 16:51 2008-05-05 03:03
己丑 2009-04-19 22:44 2009-05-05 08:50
庚寅 2010-04-20 04:29 2010-05-05 14:44
辛卯 2011-04-20 10:17 2011-05-05 20:23
壬辰 2012-04-19 16:12 2012-05-05 02:19
癸巳 2013-04-19 22:03 2013-05-05 08:18
甲午 2014-04-20 03:55 2014-05-05 13:59
Source: JPL Horizons On-Line Ephemeris System
gollark: > implying IRC exists
gollark: No. That was Tuesday.
gollark: > implying implication
gollark: > implying netsplits exist
gollark: This is purely a hypothetical bunker.

References

  1. Kondō Heijō (近藤瓶城), ed. (1901). 新加纂録類 (Shinka Sanrokurui). 改定史籍集覧 (Kaitei Shiseki Shūran). 19. (Meiji 34). Tokyo: 近藤活版所 (Kondō Kappansho). p. 110.CS1 maint: ref=harv (link)
  2. Fujisawa Morihiko (1961). 年中行事編 (Nenjū Gyōjihen). 図説日本民俗学全集 (Zusetsu Nihon Minzokugaku Zenshū). 7. Tokyo: Akane Shobō. p. 103.CS1 maint: ref=harv (link)
Preceded by
Qingming (清明)
Solar term (節氣) Succeeded by
Lixia (立夏)
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