Guyu

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Solar term
 Longi-
tude
 
  Term   Calendar
Spring
315° Lichun Feb.4-5
330° Yushui Feb.4-19
345° Jingzhe Mar. 5-6
Chunfen Mar.20-21
15° Qingming Apr.4-5
30° Guyu Apr.20-21
Summer
45° Lixia May 5-6
60° Xiaoman May 21-22
75° Mangzhong Jun.5-6
90° Xiazhi Jun.5-22
105° Xiaoshu Jul.7-8
120° Dashu Jul.22-23
Autumn
135° Liqiu Aug.7-8
150° Chushu Aug.23-24
165° Bailu Sep.7-8
180° Qiufen Sep.7-24
195° Hanlu Oct.8-9
210° Shuangjiang Oct.23-24
Winter
225° Lidong Nov.7-8
240° Xiaoxue Nov.22-23
255° Daxue Dec.7-8
270° Dongzhi Dec.21-22
285° Xiaohan Jan.5-6
300° Dahan Jan.20-21

The traditional East Asian calendars divide a year into 24 solar terms (節氣). Gǔyù (pīnyīn) or more commonly pronounced as Gǔyǔ, or Kokuu (rōmaji) (Traditional Chinese: 穀雨; Simplified Chinese: 谷雨; Japanese: 穀雨; Korean: 곡우; Vietnamese: Cốc vũ; literally: "grain rain") 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.

[edit] Pentads

Date and Time (UTC)
year begin end
辛巳 2001-Apr-20 00:35 2001-May-05 10:44
壬午 2002-Apr-20 06:20 2002-May-05 16:37
癸未 2003-Apr-20 12:02 2003-May-05 22:10
甲申 2004-Apr-19 17:50 2004-May-05 04:02
乙酉 2005-Apr-19 23:37 2005-May-05 09:52
丙戌 2006-Apr-20 05:26 2006-May-05 15:30
丁亥 2007-Apr-20 11:07 2007-May-05 21:20
戊子 2008-Apr-19 16:51 2008-May-05 03:03
己丑 2009-Apr-19 22:44 2009-May-05 08:50
庚寅 2010-Apr-20 04:29 2010-May-05 14:44

Source: JPL Horizons On-Line Ephemeris System

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
  • Second pentad: 鳴鳩拂其羽
  • Last pentad: 戴勝降于桑
Japan
  • First pentad: 葭始生
  • Second pentad: 霜止出苗
  • Last pentad: 牡丹華


Preceded by
Qingming (清明)
Solar term (節氣) Succeeded by
Lixia (立夏)