Hawaii–Aleutian Time Zone Polynesia uses UTC−10 for its major cities. The Cook Islands also use the same time. These areas do not use DST. "Hawaii–Aleutian Time Zone" is a U.S. term and for that reason the Polynesian areas are not considered to be a part of the Hawaii–Aleutian Time Zone. Hawaii–Aleutian Time Zone The Hawaii–Aleutian Time Zone observes Hawaii–Aleutian Standard Time (HST), by subtracting ten hours from Coordinated Universal Time (). The clock time in this zone is based on the mean solar time of the 150th meridian west of the Greenwich Observatory. The zone takes its name from the two areas it
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)