The traditional East Asian calendars divide a year into 24 solar terms (節氣). Mángzhǒng (pīnyīn) or more commonly pronounced as Mángzhòng, or Bōshu (rōmaji) (traditional Chinese and Japanese: 芒種; simplified Chinese: 芒种; Korean: 망종; Vietnamese: Mang chủng; literally: "grain in ear") is the 9th solar term. It begins when the Sun reaches the celestial longitude of 75° and ends when it reaches the longitude of 90°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 75°. In the Gregorian calendar, it usually begins around June 5 (June 6 East Asia time) and ends around June 21.