of DST to the last Sunday in January in 2011. In 2021 the Fiji government announced that Fiji would not observe daylight saving time in 2021–22. Hawaii Although Hawaii is further away from equator than Fiji, and therefore there is a slightly greater variation in the daylight length, Hawaii does not observe DST. Most of the inhabited islands are located close to the west end of the Hawaii-Aleutian time zone, and Oahu, Kauai and Niihau are located more than 7 degrees west of the Hawaii-Aleutian time zone's meridian and should, theoretically, be located in the next time zone to the west. Therefore advancing the clock in Hawaii would make sunrise times close to 7:00 a.m. even in June. Hawaii did experiment with DST for three weeks between April 30, 1933 and May 21, 1933; there are no known official records as to why it was implemented or discontinued. Hawaii has never observed daylight saving time under the Uniform Time Act, having opted out of the Act's provisions in 1967. New Zealand From 30 April 2007, DST begins at 02:00 NZST on the last Sunday in September each year, and ends at 03:00 NZDT (or 02:00 NZST as defined in the Time Act 1974) on the first Sunday in April. New Zealand time, including DST, is used by several Antarctic bases that are supplied from New Zealand. This results in the oddity that the Amundsen-Scott South Pole Station sets its clocks an hour further ahead during the southern summer, when the sun is constantly above the horizon, than in the southern winter, when the sun is constantly below the horizon. The extreme geographic position of the base means that no possible adjustment of the daily activity cycle can have any effect on the amount of sunlight received during those activities. However, the arrangement presumably makes real time communications with New Zealand more practical, particularly in dealing with offices. The New Zealand dependencies of Tokelau, Cook Islands and Niue do not maintain DST. The latter two are on the other side of the International Date Line and differ between 22 and 24 hours from New Zealand proper. Samoa Samoa observed DST from 2010 to 2021, starting on the last Sunday in September and ending on first Sunday in April. U.S. territories All U.S. insular territories with civilian government in Oceania, American Samoa, Guam, and the Northern Mariana Islands lie in the tropics