Off-year, a traditional festival in China, is also called Lunar New Year Festival, Kitchen God Festival and Kitchen God Festival. Folk activities in off-year mainly include sweeping dust and offering sacrifices to stoves. China has a vast territory and different customs. Due to different customs, the days called "off-year" are also different. Most areas in the south are the 24th of the twelfth lunar month, and the north is the 23rd of the twelfth lunar month. In Jiangsu, Zhejiang and Shanghai, "the 24th of the twelfth lunar month" and "the night before New Year's Eve" are both called off-year. In Nanjing, the Lantern Festival on the fifteenth day of the first month is called off-year. The off-year date in some parts of Yunnan is the 16th day of the first month, and New Year's Eve is in some parts of southwest and north. Off-year is usually considered as the beginning of a busy year, which means that people begin to prepare new year's goods, sweep dust and offer sacrifices to stoves. And prepare for a clean and beautiful year to express people's good wishes to bid farewell to the old and welcome the new. Sacrificial stoves have a history of several thousand years in China, which reflects the dream of China people to have enough food and clothing.