![]() Only with this worldwide uniform regulation did the coordinates we know today exist. When the date line was established in a preferably uninhabited area between Asia and America, the zero meridian was established on the opposite side of the globe in Greenwich. Each section of 15° corresponded to one hour, which, at least in theory, resulted in 24 uniform time zones. It was not until 1884 that a globally uniform time system was agreed upon, dividing the globe into 24 equal-sized areas according to their longitudes. One of the best known was already based on the Greenwich meridian. Origin of the Greenwich Mean Time During seafaring times, there were different zero meridians and systems for position calculation depending on the nation. Since: 1.2 See Also: DateFormatSymbols.Saint Helena, Ascension and Tristan da Cunha NullPointerException - if locale is null. Throws: IllegalArgumentException - if style is invalid. Returns: the human-readable name of this time zone in the given locale. Parameters: daylight - true specifying a Daylight Saving Time name, orįalse specifying a Standard Time name style - either LONG or SHORT locale - the locale in which to supply the display name. Locale of the search path, including Locale.ROOT, isįound, the name is returned. Locale search is performed.) If a time zone name in any Locale search path of ResourceBundle derivedįrom the specified locale is used. When looking up a time zone name, the default Saving Time name is returned (even if this TimeZone doesn't If the specified daylight is true, a Daylight Suitable for presentation to the user in the specified locale. Returns a name in the specified style of this TimeZone Time" and "China Standard Time"), and the Java platform can then only Use is deprecated because the same abbreviation is often usedįor multiple time zones (for example, "CST" could be U.S. (such as "PST", "CTT", "AST") are also supported. + - TwoDigitHours: Digit Digit Minutes: Digit Digit Digit: one ofįor example, TimeZone.getTimeZone("GMT-8").getID() returns "GMT-08:00".įor compatibility with JDK 1.1.x, some other three-letter time zone IDs NormalizedCustomID: GMT Sign TwoDigitHours : Minutes Sign: one of Zone ID is normalized in the following syntax: When creating a TimeZone, the specified custom time The specified string doesn't match the syntax, "GMT" Transition schedule can be specified with a custom time zone ID. The format is locale independent and digits must be taken from theīasic Latin block of the Unicode standard. Hours and ten minutes ahead of GMT, respectively. For example, "GMT+10" and "GMT+0010" mean ten + - Hours: Digit Digit Digit Minutes: Digit Digit Digit: one ofĠ 1 2 3 4 5 6 7 8 9 Hours must be between 0 to 23 and Minutes must beīetween 00 to 59. The syntax of a custom time zone ID is:ĬustomID: GMT Sign Hours : Minutes GMT Sign Hours Minutes GMT Sign Hours Sign: one of Supported IDs, then a custom time zone ID can be specified to If the time zone you want is not represented by one of the ![]() You can use the getAvailableIDs method to iterate throughĪll the supported time zone IDs. TimeZone tz = TimeZone.getTimeZone("America/Los_Angeles") Pacific Time zone is "America/Los_Angeles". You can also get a TimeZone using getTimeZoneĪlong with a time zone ID. For example, for a program running in Japan, getDefaultĬreates a TimeZone object based on Japanese Standard Time. Which creates a TimeZone based on the time zone where the program Typically, you get a TimeZone using getDefault TimeZone represents a time zone offset, and also figures out daylight
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