Mountain Time Zone is generically called Mountain Time (MT). Specifically, it is Mountain Standard Time (MST) when observing standard time, and Mountain Daylight Time (MDT) when observing daylight saving time. The term refers to how the Rocky Mountains, which range from northwestern Canada to the US state of New Mexico, are located almost entirely in the time zone. In Mexico, this time zone is known as the Zona Pacífico (Pacific Zone). In the US and Canada, the Mountain Time Zone is to the east of the Pacific Time Zone and to the west of the Central Time Zone. In some areas, starting in
Standard Zhuang Standard Zhuang Standard Zhuang (autonym: (pre-1982: ; Sawndip: ); ) is the official standardized form of the Zhuang languages, which are a branch of the Northern Tai languages. Its pronunciation is based on that of the Yongbei Zhuang dialect of Shuangqiao, Guangxi in Wuming District, Guangxi with some influence from Fuliang, also in Wuming District, while its vocabulary is based mainly on northern dialects. The official standard covers both spoken and written Zhuang. It is the national standard of the Zhuang languages, though in Yunnan a local standard is used. Standard Zhuang has six tones, reduced to two (numbered 7–8)