Japan Standard Time in the context of "Time in South Korea"

The Great Kantō Earthquake (Japanese: 関東大地震, romanized: Kantō daijishin or 関東大震災, Kantō daishinsai) was a megathrust earthquake that struck the Kantō Plain on the main Japanese island of Honshu at 11:58:32 JST (02:58:32 UTC) on Saturday, 1 September 1923. It had an approximate magnitude of 8.0 on the moment magnitude scale (M_w), with its epicenter located some 100 km (62 mi) southwest of the capital Tokyo. The earthquake devastated Tokyo, the port city of Yokohama, and surrounding prefectures of Kanagawa, Chiba, and Shizuoka, and caused widespread damage throughout the Kantō region.

The event was a complex disaster, with modern research indicating it consisted of three consecutive shocks in the span of several minutes. The initial megathrust event in Kanagawa Prefecture was followed three minutes later by a magnitude 7.2 earthquake centered beneath Tokyo Bay, and two minutes after that by a magnitude 7.3 shock in Yamanashi Prefecture. Fires, exacerbated by strong winds from a nearby typhoon, spread rapidly through the densely populated urban areas, accounting for the majority of the devastation and casualties. The death toll is estimated to have been between 105,000 and 140,000 people, including tens of thousands who went missing and were presumed dead. Over half of Tokyo and nearly all of Yokohama were destroyed, leaving approximately 2.5 million people homeless. The disaster triggered widespread social unrest, including the Kantō Massacre, in which ethnic Koreans and others mistaken for them were murdered by vigilante groups based on false rumors.

A calendar date is a reference to a particular day, represented within a calendar system, enabling a specific day to be unambiguously identified. Simple math can be performed between dates; commonly, the number of days between two dates may be calculated, e.g., "25 December 2025" is ten days after "15 December 2025". The date of a particular event depends on the time zone used to record it. For example, the air attack on Pearl Harbor that began at 7:48 a.m. local Hawaiian time (HST) on 7 December 1941 is recorded equally as having happened on 8 December at 3:18 a.m. Japan Standard Time (JST).

A particular day may be assigned a different nominal date according to the calendar used. The de facto standard for recording dates worldwide is the Gregorian calendar, the world's most widely used civil calendar. Many cultures use religious calendars such as the Gregorian (Western Christendom, AD), the Julian calendar (Eastern Christendom, AD), Hebrew calendar (Judaism, AM), the Hijri calendars (Islam, AH), or any other of the many calendars used around the world. Regnal calendars (that record a date in terms of years since the beginning of the monarch's reign) are also used in some places, for particular purposes.

The Japanese Instrument of Surrender was the printed agreement that formalized the surrender of Japan, marking the end of hostilities in World War II. It was signed by representatives from Japan and from the Allied nations: the United States, China, the United Kingdom (UK), the Soviet Union, Australia, Canada, France, the Netherlands, and New Zealand. The signing took place on the deck of USS Missouri in Tokyo Bay on 2 September 1945.

The date is sometimes known as Victory over Japan Day. However, that designation more frequently refers to the date of Emperor Hirohito's Gyokuon-hōsō (Imperial Rescript of Surrender), the radio broadcast announcement of the acceptance of the terms of the Potsdam Declaration at noon Japan Standard Time on 15 August.

The Hirohito surrender broadcast (Japanese: 玉音放送, Hepburn: Gyokuon-hōsō; lit. 'Broadcast of the Emperor's Voice'), was a radio broadcast of surrender given by Hirohito, the emperor of Japan, on August 15, 1945.

With historic understatement, it announced to the Japanese people that as "the war situation has developed not necessarily to Japan's advantage", the Japanese government had accepted the Potsdam Declaration, which demanded the unconditional surrender of the Japanese military at the end of World War II. Following the Hiroshima bombing on August 6, and the Soviet declaration of war and Nagasaki bombing on August 9, the Emperor's speech was broadcast at noon Japan Standard Time on August 15, 1945, and referred to the atomic bombs as a reason for the surrender.

The Proclamation of Indonesian Independence (Indonesian: Proklamasi Kemerdekaan Indonesia, or simply Proklamasi) was read at 10:00 Tokyo Standard Time on Friday, 17 August 1945 in Jakarta. The declaration marked the start of the diplomatic and armed resistance of the Indonesian National Revolution, fighting against the forces of the Netherlands and pro-Dutch civilians, until the latter officially acknowledged Indonesia's independence in 1949. The document was signed by Sukarno and Mohammad Hatta, who were appointed president and vice-president respectively the following day.

The date of the Proclamation of Indonesian Independence was made a public holiday by a government decree issued on 18 June 1946.

The Republic of Indonesia, a country located in Southeast Asia has three time zones. Western Indonesia Time (Waktu Indonesia Barat, WIB) 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 (Waktu Indonesia Tengah, WITA) 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 (Waktu Indonesia Timur, WIT) is nine hours ahead (UTC+09:00), used in the Maluku Islands and Western New Guinea. About 80% of the Indonesian population live in WIB (UTC+07:00).

In 1908, during the Dutch East Indies colonial era, only Java and the Madura Island were initially given time until 1932, when the government utilised UTC+06:30 up to +09:30. In between those changes in 1918, Central Java (UTC+07:20, now defunct) was the basis for time in select locations: for instance, Padang was 7 minutes behind Central Java. The Japanese occupation of the Indies prompted the simplification of time in Indonesia to just UTC+09:00, also known as the Japan Standard Time. The Dutch reoccupied the country following its 1945 independence with UTC+06:00 up to +09:00 established, but it was reverted to the 1932 system after they recognised Indonesia's sovereignty. The current time zone division is a 1988 revision of a 1964 division, with Bali, West Kalimantan, and Central Kalimantan changing sides. Without any significant season changes, the daylight saving time system is not observed anywhere in Indonesia, as is other Southeast Asian countries.

Timor-Leste 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 Timor-Leste, due to its proximity to the equator; there is only a small variation between the length of day and night throughout the year. Timor-Leste shares the same time zone with Japan Standard Time, Korean Standard Time, Pyongyang Time (North Korea), Eastern Indonesia Standard Time, Palau Time, and Yakutsk Time (Russia).