The traditional East Asian calendars divide a year into 24 solar terms . Xiǎoxuě or Shōsetsu is the 20th solar term. It begins when the Sun reaches the celestial longitude of 240° and ends when it reaches the longitude of 255°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 240°. In the Gregorian calendar, it usually begins around November 22 and ends around December 7.