Time in Palau is given by Palau Time (PWT; UTC+09:00). [1] [2] Palau does not have an associated daylight saving time. [3]
Palau Time is equivalent to Japan Standard Time, Korean Standard Time, Pyongyang Time (North Korea), Eastern Indonesia Standard Time, East-Timorese Standard Time, and Yakutsk Time (Russia).
Until Monday, December 30, 1844, Palau belonged to Captaincy General of the Philippines, which had the date of the western hemisphere on its island, placing it on the eastern side of the International Date Line (IDL). On Wednesday, January 1, 1845, it switched to the date of the eastern hemisphere on the western side of the IDL, skipping the entire calendar day of Tuesday, December 31, 1844.[ citation needed ]
Before time zones were introduced, every place used local observation of the sun to set its clocks, which meant that every location used a different local mean time based on its longitude. For example, Koror, the largest city of Palau at the time, at longitude 134°29′E, had a local time equivalent to GMT-15:02:04 under the date of the western hemisphere and GMT+08:57:56 under the eastern hemisphere.[ citation needed ]
In 1901, "Palau Time" (PWT) was established as GMT+09:00.[ citation needed ]
The IANA time zone database gives Palau one time zone, Pacific/Palau. [4]
c.c.* | coordinates* | TZ* | Comments | UTC offset | DST |
---|---|---|---|---|---|
PW | +0720+13429 | Pacific/Palau | +09:00 | +09:00 |
A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.
Japan Standard Time, or Japan Central Standard Time, is the standard time zone in Japan, 9 hours ahead of UTC (UTC+09:00). Japan does not observe daylight saving time, though its introduction has been debated on several occasions. During World War II, the time zone was often referred to as Tokyo Standard Time.
The International Date Line (IDL) is the line between the South and North Poles that is the boundary between one calendar day and the next. It passes through the Pacific Ocean, roughly following the 180.0° line of longitude and deviating to pass around some territories and island groups. Crossing the date line eastbound decreases the date by one day, while crossing the date line westbound increases the date.
Moscow Time is the time zone for the city of Moscow, Russia, and most of western Russia, including Saint Petersburg. It is the second-westernmost of the eleven time zones of Russia. It has been set to UTC+03:00 without DST since 26 October 2014; before that date it had been set to UTC+04:00 year-round on 27 March 2011.
The ASEAN Common Time (ACT) is a proposal to adopt a standard time for all Association of Southeast Asian Nations member states. It was proposed in 1995 by Singapore, and in 2004 and 2015 by Malaysia to make business across countries easier. The proposal failed because of opposition in Thailand and Cambodia: Thais and Cambodians argued that UTC+08:00 was not really better than UTC+07:00, which is their current time zone.
The Republic of Indonesia, a country located in Southeast Asia has three time zones. Western Indonesia Time is seven hours ahead (UTC+07:00) of the Coordinated Universal Time (UTC), used in the islands of Sumatra, Java, and the western half of Kalimantan. Central Indonesia Time is eight hours ahead (UTC+08:00), used in the eastern half of Kalimantan, as well as all of Bali, the Lesser Sunda Islands, and Sulawesi. Eastern Indonesia Time is nine hours ahead (UTC+09:00), used in the Maluku Islands and Western New Guinea.
The tz database is a collaborative compilation of information about the world's time zones and rules for observing daylight saving time, primarily intended for use with computer programs and operating systems. Paul Eggert has been its editor and maintainer since 2005, with the organizational backing of ICANN. The tz database is also known as tzdata, the zoneinfo database or the IANA time zone database, and occasionally as the Olson database, referring to the founding contributor, Arthur David Olson.
Philippine Standard Time, also known as Philippine Time (PHT), is the official name for the time zone used in the Philippines. The country only uses a single time zone, at an offset of UTC+08:00, but has used daylight saving time for brief periods in the 20th century until July 28, 1990.
The Chamorro Time Zone, formerly the Guam Time Zone, is a United States time zone which observes standard time ten hours ahead of Coordinated Universal Time (UTC+10:00). The clock time in this zone is based on the mean solar time of the 150th meridian east of the Greenwich Observatory.
East Timor uses UTC+09:00. In the west the country borders the UTC+08:00 zone of Central Indonesia and in the east the UTC+09:00 zone of Eastern Indonesia. Daylight saving time is never observed in East Timor, due to its proximity to the equator; there is only a small variation between the length of day and night throughout the year. East Timor shares the same time zone with Japan Standard Time, Korean Standard Time, Pyongyang Time, Eastern Indonesia Standard Time, Palau Time, and Yakutsk Time (Russia).
South Korea has one time zone, Korea Standard Time (GMT+9), which is abbreviated KST. South Korea currently does not observe daylight saving time.
Time in Ukraine is defined as UTC+02:00 and in summer as UTC+03:00. Part of Eastern European Time, it is locally referred to as Kyiv Time. The change for the summer time takes place in the last Sunday of March at 03:00 when the time is changed by an hour ahead, and the last Sunday of October at 04:00, when the time changes an hour back. In this way, the clocks in Ukraine are always one hour ahead of those in central Europe.
Portugal has two time zones and observes daylight saving time. Continental Portugal and Madeira use UTC+00:00, while the Azores use UTC–01:00. Daylight saving time is observed nationwide from the last Sunday in March to the last Sunday in October, when continental Portugal and Madeira advance one hour to UTC+01:00, and the Azores advances one hour to UTC+00:00.
Switzerland uses Central European Time (CET) during the winter as standard time, which is one hour ahead of Coordinated Universal Time (UTC+01:00), and Central European Summer Time (CEST) during the summer as daylight saving time, which is two hours ahead of Coordinated Universal Time (UTC+02:00).
Denmark, including its dependencies of Faroe Islands and Greenland, uses six time zones.
Time in the Kingdom of the Netherlands is denoted by Central European Time during the winter as standard time in the Netherlands, which is one hour ahead of coordinated universal time (UTC+01:00), and Central European Summer Time (CEST) during the summer as daylight saving time, which is two hours ahead of coordinated universal time (UTC+02:00). The Caribbean Netherlands – which consist of the islands of Bonaire, Sint Eustatius and Saba – all observe Atlantic Standard Time (AST) year-round, which is four hours behind coordinated universal time (UTC−04:00).
Time in Liberia is given by a single time zone, denoted as Greenwich Mean Time. Liberia shares this time zone with several other countries, including fourteen in western Africa where it was formerly known as Western Sahara Standard Time (WSST). Liberia has never observed daylight saving time (DST).
Time in the Gambia is given by a single time zone, denoted as Greenwich Mean Time. Adopted in 1918, the Gambia has never observed daylight saving time (DST).
The Dominican Republic observes Atlantic Standard Time (UTC−4) year-round. Daylight saving time was used in the past.