Yuan Xiao Jie (the Chinese lantern festival held on the 15th of the first month of the lunar calendar, called Genshosetsu in Japanese) is also called Shang Yuan Festival (Jogensetsu in Japanese) and is celebrated according to the old calendar.
元宵節（げんしょうせつ、）は上元節（じょうげんせつ）ともいい、旧暦により祝われる。