The traditional Chinese calendar divides a year into 24 solar terms. Dàhán, Daikan, Daehan, or ÃÂại hàn () is the 24th solar term. It begins when the Sun reaches the celestial longitude of 300ð and ends when it reaches the longitude of 315ð. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 300ð. In the Gregorian calendar, Dahan usually begins around 20 January and ends around 4 February.
There are many important folk customs during the period from Dahan to Lichun, such as getting rid of the old and bringing in the new, preserving meat, and the year-end festival.
Weiya () is the year-end festival. Glutinous rice, steamed buns, and much alcohol are traditional foods. Getting a haircut and buying new year gifts are common activities at the end of the year. End of year work parties (å¹´ä¼Â) are a modern remnant of the year-end festival.
Some other traditional activities at this time of year: