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Time in the Kingdom of Sierra

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 This article is an A-class article. It is written to a very high standard. This article is part of Altverse II.
Map of K.S. time zones as of 2019

Time in the Kingdom of Sierra is divided into ten standard time zones (ranging from UTC–12:00 to UTC+14:00), with the majority of the Kingdom of Sierra's provinces, states, areas, and territories observing daylight saving time (DST) between late spring and early fall. Although PSAs are free to make laws regarding time zones, official time zone boundaries and DST observance is formally regulated and determined by the K.S. Ministry of Interior. Western Federal Sierra and Bajaría mainly uses the Pacific Standard Time (PST) and Pacific Daylight Savings Time (PDT), while Eastern Federal Sierra, the Deseret, West Colorado, and West New Mexico uses the Mountain Standard Time (MST) and Mountain Daylight Savings Time (MDT). All of the states in Hawaii and several other outlying K.S. Pacific islands observe Hawaii Standard Time (HST) and the Yucatán Peninsula observes Central Standard Time (CST). Daylight savings is generally observed from the last Sunday of March to the last Sunday of October. It is not observed by any of Sierra's territories (except for the portion of Pacífico Norte west of the Colorado River), in the country of Hawaii, and five provinces in Federal Sierra (Cornerstone, Flagstaff, Imperial, Maricopa [eastern half only], and Sonora). The most advanced time zone is in the K.S. territory of the Gilbert and Ellice Islands, which observes UTC+14:00, the world's earliest time zone, as Gilbert and Ellice Standard Time (GST). The least advanced time zone is in the K.S. territory of the Pacific Crown Islands, namely the islands of New Nantucket and Worth Island, which observes UTC–12:00 as the New Nantucket Standard Time (NST).

Official time

The official times in the Kingdom of Sierra utilize 133CS atomic clocks which are maintained by two government agencies: the Royal Surveyors Corps (RSC) and the Royal Academy of Standards and Measurements (RASM). The clocks are accurate to 30 billionths a second per year. It is synchronized with other international clocks used around the world under the Coordinated Universal Time system. All times utilized are shown in 24-hour time. RBS airs a daily time signal across its radio service, sending a series of 900 Hz wave tones for about a minute before 12:00 PT. It is broadcast in all of Sierra's nine official languages, and an additional six others across all of its language-variant broadcasts.

Time notation

While the Sierran government officially endorses and promotes the use of the 24-hour clock, the 12-hour clock is the most prevalent form of timekeeping in everyday life including writing, media, computing, transportation, and education. The 24-hour clock is used officially by the government, the military, and scientific organizations, but is seldom used in conversational speech among English speakers, even when reading from 24-hour clock times. Among French-speaking Sierrans and some Spanish-speaking Sierrans (especially those who live in Bajaría), the use of 24-hour time in speech is much more common and preferred.


Zones used in Sierra, the Deseret, Hawaii, and Bajaría,

Time Zone DST Standard
New Nantucket (not observed) UTC–12:00 New Nantucket, Worth Island
Samoa (not observed) UTC–11:00 East Leewards, Falmouth Island, Sierran Samoa, Smith Reef, Middlebrook Island, West Leewards, Wright Atoll
Hawaii (not observed) UTC−10:00 Hawaii State, Honolulu, Kalama Atoll, Kamehameha, Kauai, Maui, Oahu
Pacific UTC–8:00 UTC–7:00 Central Valley, Channel Islands, Clark, Gold Coast, Imperial (no DST observed), Inland Empire, Kings, Laguna, Mohave, Orange, Pacífico Norte, Pacífico Sur, Plumas, Reno, San Francisco, San Joaquin, Santa Clara, Shasta, Tahoe, Washumko; Partially: Maricopa
Mountain UTC–6:00 UTC–7:00 Apache, Cornerstone (no DST observed), Emery, Eureka, Flagstaff (no DST observed), Iron, Juab, Morganland, New Oneida, Sonora (no DST observed), Sweetwater, Wasatch, West Colorado, West New Mexico; Partially: Maricopa (no DST observed)
Central UTC–5:00 UTC–6:00 Cancún, Isles of Pines, Saint Andrews, Providence, and the Corn Islands, Yucatán
Béneîle (not observed) UTC+11:00 Béneîle
Gilbert Islands (not observed) UTC+12:00 Wake Island; Partially: Gilbert and Ellice Islands (Gilbert Islands)
Phoenix Islands (not observed) UTC+13:00 Partially: Gilbert and Ellice Islands (Phoenix Islands)
Ellice Islands (not observed) UTC+14:00 Partially: Gilbert and Ellice Islands (Ellice Islands)

Antarctic research stations and Sierran Antarctic Territory

The Sierran Antarctic Territory officially uses Pacific Standard Time, while Sierran bases stationed in other parts of Antarctica base their time on the closest supply station. For instance, the Ulla Britta Base in the New Zealander Ross Dependency places their time at UTC+12:00, in line with New Zealand's.

Former zones

Time Zone DST Standard
Chamorro (not observed) UTC+10:00 Guam, Northern Mariana Islands
Tondo (not observed) UTC+8:00 Palawan and Cuyo, Sierran East Indies
Central (not observed) UTC–6:00 Nicaragua Canal Zone
Alaska UTC–9:00 UTC–8:00 Alaska

Daylight savings time

Daylight savings observance begins on the last Sunday of March and ends on the last Sunday of October. This has been effect nationwide in all DST-observing jurisdictions since the National Daylight Savings Scheduling Act of 1993, which ensured uniform DST observance. Prior to the act, the start and end of daylight savings observance varied, with most provinces starting on the second Sunday of March, and some provinces ending on the first Sunday of November.

At the start of daylight savings observance, clocks are moved an hour ahead at 2:00 AM, while they are set back by an hour at 2:00 AM at the conclusion of daylight savings observance.

See also