The Dragon Boat Festival (simplified Chinese: 端午节; traditional Chinese: 端午節) is a traditional Chinese holiday which occurs on the fifth day of the fifth month of the Chinese calendar, which corresponds to late May or June in the Gregorian calendar.
Duanwu as the festival is called in Mandarin Chinese, literally means "starting/opening horse", i.e., the first "horse day" (according to the Chinese zodiac/Chinese calendar system) to occur on the month; however, despite the literal meaning being wǔ, "the [day of the] horse in the animal cycle", this character has also been interchangeably construed as wǔ meaning "five". Hence Duanwu, the "festival on the fifth day of the fifth month".
The Mandarin Chinese name of the festival is "端午節" (simplified Chinese: 端午节; traditional Chinese: 端午節; pinyin: Duānwǔjié; Wade–Giles: Tuan Wu chieh) in China and Taiwan, and "Tuen Ng Festival" for Hong Kong, Macao, Malaysia and Singapore.
It is pronounced variously in different Chinese dialects. In Cantonese, it is romanized as Tuen1 Ng5 Jit3 in Hong Kong and Tung1 Ng5 Jit3 in Macau. Hence the "Tuen Ng Festival" in Hong Kong Tun Ng (Festividade do Barco-Dragão in Portuguese) in Macao.