![]() More information: The full date short time ("f") format specifier. Juni 2009 (de-DE)įull date/time pattern (short time). More information: The long date ("D") format specifier. More information: The short date ("d") format specifier. See Control Panel Settings and DateTimeFormatInfo Properties for additional information about using standard date and time format strings. Unless otherwise noted, a particular standard date and time format specifier produces an identical string representation regardless of whether it is used with a DateTime or a DateTimeOffset value. The following table describes the standard date and time format specifiers. This may affect the behavior and the output of examples that illustrate the DateTime, DateTimeOffset, and TimeZoneInfo types and their members. The local time zone of the Try.NET inline code runner and playground is Coordinated Universal Time, or UTC. The modified code either runs in the interactive window or, if compilation fails, the interactive window displays all C# compiler error messages. Once you execute the code, you can modify it and run the modified code by selecting Run again. Select the Run button to run an example in an interactive window. ![]() Indiana introduced DST in 2006.Some of the C# examples in this article run in the Try.NET inline code runner and playground. Most of Arizona and Hawaii don't use DST. In addition the uninhabited atolls of Baker Island (AoE) and Wake Island (WAKT) add to the time zone count, making 11 the total number of time zones in the US.Īlmost all states in the US use Daylight Saving Time (DST). There are 9 official time zones according to the law. The time zones in the law are defined by their offset from Coordinated Universal Time (UTC). ![]() Code, Title 15, Chapter 6, Subchapter IX - Standard Time. Time zones in the USA are defined in the U.S. Since 1967, the US Department of Transportation (DOT) has been responsible for governing time zones in the country. The US was divided into 4 standard time zones on November 18, 1883, and jurisdiction for the zones was given to the Interstate Commerce Commission (ICC). ![]() Time Zones Being Used in Dependencies of United States Offset They will become active again after the next clock change as Daylight Saving Time begins or ends. The above time zones are used during other parts of the year. Time Zones Not Currently Being Observed in United States Offset Note: Local time in these time zones changes when Daylight Saving Time begins and ends. ![]() In practice, this means that the local time in these time zones changes when DST begins and ends. For example, Eastern Time (ET) refers to Eastern Standard Time (EST) or Eastern Daylight Time (EDT), depending on which is currently in use. The time zones in the contiguous US are often referred to by their generic name, without making a difference between standard time and Daylight Saving Time designations. Generalized Time Zones in United States Time Zone Abbreviation & Name Since Howland Island and Baker Island constitute the world's westernmost landmasses in relation to the International Date Line, making them the last places on Earth where any date exists, they are sometimes assigned a theoretical 12th time zone called Anywhere on Earth (AoE). As neither Hawaii nor the 5 dependencies use Daylight Saving Time (DST), there are only 6 corresponding DST time zones. In addition, Alaska, Hawaii, and 5 US dependencies all have their own time zones. The contiguous US has 4 standard time zones. However, adding the time zones of 2 uninhabited US territories, Howland Island and Baker Island, brings the total count to 11 time zones. There are 9 time zones by law in the USA and its dependencies. Time Zones Currently Being Used in United States Offset
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