Qiufen

See also: September equinox

The traditional Chinese lunisolar calendar divides a year into 24 solar terms.^[1] Qiūfēn, Shūbun, Chubun, or Thu phân is the 16th solar term. It begins when the Sun reaches the celestial longitude of 180° and ends when it reaches the longitude of 195°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 180°. In the Gregorian calendar, it usually begins around September 23 and ends around October 8.

Qiufen
Chinese name
Chinese	秋分
Literal meaning	autumnal equinox
Transcriptions Standard Mandarin Hanyu Pinyin qiūfēn Bopomofo ㄑㄧㄡ ㄈㄣ Yue: Cantonese Yale Romanization chāu fān Jyutping cau1 fan1
Vietnamese name
Vietnamese alphabet	thu phân
Chữ Hán	秋分
Korean name
Hangul	추분
Hanja	秋分
Transcriptions Revised Romanization chubun
Japanese name
Kanji	秋分
Hiragana	しゅうぶん
Transcriptions Romanization shūbun

Solar term

Term	Longitude	Dates
Lichun	315°	4–5 February
Yushui	330°	18–19 February
Jingzhe	345°	5–6 March
Chunfen	0°	20–21 March
Qingming	15°	4–5 April
Guyu	30°	20–21 April
Lixia	45°	5–6 May
Xiaoman	60°	21–22 May
Mangzhong	75°	5–6 June
Xiazhi	90°	21–22 June
Xiaoshu	105°	7–8 July
Dashu	120°	22–23 July
Liqiu	135°	7–8 August
Chushu	150°	23–24 August
Bailu	165°	7–8 September
Qiufen	180°	23–24 September
Hanlu	195°	8–9 October
Shuangjiang	210°	23–24 October
Lidong	225°	7–8 November
Xiaoxue	240°	22–23 November
Daxue	255°	7–8 December
Dongzhi	270°	21–22 December
Xiaohan	285°	5–6 January
Dahan	300°	20–21 January

Pentads

• 雷始收聲, 'Thunder begins to soften'
• 蟄蟲培戶, 'Insects make nests'
• 水始涸, 'Water begins to solidify'

Date and time

Date and Time (UTC)

year	begin	end
辛巳	2001-09-22 23:04	2001-10-08 05:25
壬午	2002-09-23 04:55	2002-10-08 11:09
癸未	2003-09-23 10:46	2003-10-08 17:00
甲申	2004-09-22 16:29	2004-10-07 22:49
乙酉	2005-09-22 22:23	2005-10-08 04:33
丙戌	2006-09-23 04:03	2006-10-08 10:21
丁亥	2007-09-23 09:51	2007-10-08 16:11
戊子	2008-09-22 15:44	2008-10-07 21:56
己丑	2009-09-22 21:18	2009-10-08 03:40
庚寅	2010-09-23 03:09	2010-10-08 09:26
辛卯	2011-09-23 09:04	2011-10-08 15:19
壬辰	2012-09-22 14:48	2012-10-07 21:11
癸巳	2013-09-22 20:44	2013-10-08 02:58
甲午	2014-09-23 02:29	2014-10-08 08:47
乙未	2015-09-23 08:17	2015-10-08 14:43
丙申	2016-09-22 14:21	2016-10-07 20:33
丁酉	2017-09-22 20:02	2017-10-08 02:19
戊戌	2018-09-23 01:52	2018-10-08 08:11
己亥	2019-09-23 07:47	2019-10-08 14:05
庚子	2020-09-22 13:30	2020-10-07 19:56
Source: JPL Horizons On-Line Ephemeris System

See also

• Equinox

References

1. Zhang, Peiyu; Hunag, Hongfeng (1994). "The Twenty-four Solar Terms of the Chinese Calendar and the Calculation for Them". Purple Mountain Observatory.

Preceded by Bailu (白露)

Solar term (節氣)

Succeeded by Hanlu (寒露)