The traditional East Asian calendars divide a year into 24 solar terms. Xiǎohán, Shōkan, Sohan, or Tiểu hàn (Chinese and Japanese: 小寒; pinyin: xiǎohán; rōmaji: shōkan; Korean: 소한; romaja: sohan; Vietnamese: tiểu hàn; "minor cold") is the 23rd solar term. It begins when the Sun reaches the celestial longitude of 285° and ends when it reaches the longitude of 300°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 285°. In the Gregorian calendar, it usually begins around 5 January and ends around 20 January.
Date and Time (UTC)
| year | begin | end |
| 辛巳 |
2002-01-05 12:43 |
2002-01-20 06:02 |
| 壬午 |
2003-01-05 18:27 |
2003-01-20 11:52 |
| 癸未 |
2004-01-06 00:18 |
2004-01-20 17:42 |
| 甲申 |
2005-01-05 06:03 |
2005-01-19 23:21 |
| 乙酉 |
2006-01-05 11:46 |
2006-01-20 05:15 |
| 丙戌 |
2007-01-05 17:40 |
2007-01-20 11:00 |
| 丁亥 |
2008-01-05 23:24 |
2008-01-20 16:43 |
| 戊子 |
2009-01-05 05:14 |
2009-01-19 22:40 |
| 己丑 |
2010-01-05 11:08 |
2010-01-20 04:27 |
| 庚寅 |
2011-01-05 16:54 |
2011-01-20 10:18 |
| 辛卯 |
2012-01-05 22:43 |
2012-01-20 16:09 |
| 壬辰 |
2013-01-05 04:33 |
2013-01-19 21:51 |
| 癸巳 |
2014-01-05 10:24 |
2014-01-20 03:51 |
| 甲午 |
2015-01-05 16:20 |
2015-01-20 09:43 |
Source: JPL Horizons On-Line Ephemeris System