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
Royal Standard of Thailand to the 'Thong Chudhathipathai' (ธงจุฑาธิปไตย). In 1910 King Vajiravudh replaced the Royal Standard and Royal rank flags to mirror the change of the National emblem from the Coat of Arms of Siam to the Royal Garuda. These flags are retained and in use to this day. Six years later he also redesigned the national flag and naval ensigns. Royal Standard of Thailand The Royal Standard of Thailand ( "Thong Maharat") is the official flag of the King of Thailand. The standard was adopted in its present form in 1910 under King Vajiravudh (Rama VI), superseding the first Royal Standard created