Qingming

Qīngmíng (pīnyīn) or Chīngmíng (MPS II), Seimei (rōmaji), or Cheongmyeong (romaja) (Chinese and Japanese: 清明;Korean: 청명;Vietnamese:Thanh minh;literally: "clear and bright") is the name of the 5th solar term of the traditional East Asian lunisolar calendar, which divides a year into 24 solar terms (t. 節氣/s. 节气). In space partitioning, Qingming begins when the sun reaches the celestial longitude of 15° and ends when it reaches the longitude of 30°. It more often refers in particular to the day when the sun is exactly at the celestial longitude of 15°, usually on April 5th.