Lìxià, Rikka, Ipha, or Lập hạ is the 7th solar term according to the traditional East Asian calendars, which divide a year into 24 solar terms (節氣). It signifies the beginning of summer in East Asian cultures.
Date and Time (UTC)
| year |
begin |
end
|
|---|
| 辛巳
|
2001-05-05 10:44
|
2001-05-20 23:44
|
|---|
| 壬午
|
2002-05-05 16:37
|
2002-05-21 05:29
|
|---|
| 癸未
|
2003-05-05 22:10
|
2003-05-21 11:12
|
|---|
| 甲申
|
2004-05-05 04:02
|
2004-05-20 16:59
|
|---|
| 乙酉
|
2005-05-05 09:52
|
2005-05-20 22:47
|
|---|
| 丙戌
|
2006-05-05 15:30
|
2006-05-21 04:31
|
|---|
| 丁亥
|
2007-05-05 21:20
|
2007-05-21 10:11
|
|---|
| 戊子
|
2008-05-05 03:03
|
2008-05-20 16:00
|
|---|
| 己丑
|
2009-05-05 08:50
|
2009-05-20 21:51
|
|---|
| 庚寅
|
2010-05-05 14:44
|
2010-05-21 03:33
|
|---|
| 辛卯
|
2011-05-05 20:23
|
2011-05-21 09:21
|
|---|
| 壬辰
|
2012-05-05 02:19
|
2012-05-20 15:15
|
|---|
| 癸巳
|
2013-05-05 08:18
|
2013-05-20 21:09
|
|---|
| 甲午
|
2014-05-05 13:59
|
2014-05-21 02:59
|
|---|
Source: JPL Horizons On-Line Ephemeris System
It begins when the Sun reaches the celestial longitude of 45° and ends when it reaches the longitude of 60°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 45°. In the Gregorian calendar, it usually begins around May 5 and ends around May 21.