The traditional Chinese calendar divides a year into 24 solar terms. Lìdōng, Rittō, Ipdong, or Lập đông (Chinese and Japanese: 立冬; pinyin: lìdōng; rōmaji: rittō; Korean: 입동; romaja: ipdong; Vietnamese: lập đông; lit. '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.[1]
Lidong signifies the beginning of winter in East Asian cultures.[2]
Pentads
- 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 the water for clams'
 
Date and time
Date and Time (UTC)
| Year | 
Begin | 
End
 | 
| 辛巳
 | 
2001-11-07 08:36
 | 
2001-11-22 06:00
 | 
| 壬午
 | 
2002-11-07 14:21
 | 
2002-11-22 11:53
 | 
| 癸未
 | 
2003-11-07 20:13
 | 
2003-11-22 17:43
 | 
| 甲申
 | 
2004-11-07 01:58
 | 
2004-11-21 23:21
 | 
| 乙酉
 | 
2005-11-07 07:42
 | 
2005-11-22 05:15
 | 
| 丙戌
 | 
2006-11-07 13:34
 | 
2006-11-22 11:01
 | 
| 丁亥
 | 
2007-11-07 19:24
 | 
2007-11-22 16:49
 | 
| 戊子
 | 
2008-11-07 01:10
 | 
2008-11-21 22:44
 | 
| 己丑
 | 
2009-11-07 06:56
 | 
2009-11-22 04:22
 | 
| 庚寅
 | 
2010-11-07 12:42
 | 
2010-11-22 10:14
 | 
| 辛卯
 | 
2011-11-07 18:34
 | 
2011-11-22 16:07
 | 
| 壬辰
 | 
2012-11-07 00:25
 | 
2012-11-21 21:50
 | 
| 癸巳
 | 
2013-11-07 06:13
 | 
2013-11-22 03:48
 | 
| 甲午
 | 
2014-11-07 12:06
 | 
2014-11-22 09:38
 | 
| 乙未
 | 
2015-11-07 17:58
 | 
2015-11-22 15:25
 | 
| 丙申
 | 
2016-11-06 23:47
 | 
2016-11-21 21:22
 | 
| 丁酉
 | 
2017-11-07 05:37
 | 
2017-11-22 03:04
 | 
| 戊戌
 | 
2018-11-07 11:31
 | 
2018-11-22 09:01
 | 
| 己亥
 | 
2019-11-07 17:24
 | 
2019-11-22 14:58
 | 
| 庚子
 | 
2020-11-06 23:13
 | 
2020-11-21 20:39
 | 
| 辛丑
 | 
2021-11-07 04:58
 | 
2021-11-22 02:33
 | 
| 壬寅
 | 
2022-11-07 10:45
 | 
2022-11-22 08:20
 | 
| 癸卯
 | 
2023-11-07 16:35
 | 
2023-11-22 14:02
 | 
| 甲辰
 | 
2024-11-06 22:20
 | 
2024-11-21 19:56
 | 
| 乙巳
 | 
2025-11-07 04:04
 | 
2025-11-22 01:35
 | 
| 丙午
 | 
2026-11-07 09:52
 | 
2026-11-22 07:23
 | 
| 丁未
 | 
2027-11-07 15:38
 | 
2027-11-22 13:16
 | 
| 戊申
 | 
2028-11-06 21:27
 | 
2028-11-21 18:54
 | 
| 己酉
 | 
2029-11-07 03:16
 | 
2029-11-22 00:49
 | 
| 庚戌
 | 
2030-11-07 09:08
 | 
2030-11-22 06:44
 | 
| Source: JPL Horizons On-Line Ephemeris System
 | 
See also
References