eTime.zone - Time Zone Converter
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The time zone number indicates the number of hours by which Zone Time ahead of or behind Coordinated Universal Time UTC or Greenwich Mean Time GMT. This technique is discussed in the next section. This article needs additional citations for. Because they exist on opposite sides of the , it can, for example, be noon Thursday on Baker and Howland islands while simultaneously being noon Friday on Wake Island.
Convert times from one location to another or even check current international weather conditions. Are you about to make an International long distance phone call? In these areas Central Standard Time is observed year-around.
Accurate local time and date in every time zone! - The US time-zone system grew from this, in which all zones referred back to GMT on the prime meridian.
This article needs additional citations for. Unsourced material may be challenged and removed. March 2013 Time in the United States, by law, is divided into nine standard covering the states and its possessions, with most of the observing DST for approximately the spring, summer, and fall months. The time zone boundaries and DST observance are regulated by the. Official and highly precise timekeeping services clocks are provided by two federal agencies: the NIST an agency of the ; and its military counterpart, the USNO. The clocks run by these services are kept synchronized with each other as well as with those of other international timekeeping organizations. It is the combination of the time zone and daylight saving rules, along with the timekeeping services, which determines the legal for any U. Prior to the adoption of four standard time zones for the continental United States, many towns and cities set their clocks to noon when the sun passed their local , pre-corrected for the on the date of observation, to form. Noon occurred at different times but time differences between distant locations were barely noticeable prior to the 19th century because of long travel times and the lack of long-distance instant communications prior to the development of the telegraph. The use of local solar time became increasingly awkward as railways and telecommunications improved. American railroads maintained many different time zones during the late 1800s. Each train station set its own clock making it difficult to coordinate train schedules and confusing passengers. Time calculation became a serious problem for people travelling by train sometimes hundreds of miles in a day , according to the Library of Congress. Every city in the United States used a different time standard so there were more than 300 local sun times to choose from. Time zones were therefore a compromise, relaxing the complex geographic dependence while still allowing local time to be approximate with mean solar time. Railroad managers tried to address the problem by establishing 100 railroad time zones, but this was only a partial solution to the problem. Operators of the new railroad lines needed a new time plan that would offer a uniform train schedule for departures and arrivals. Four standard time zones for the continental United States were introduced at noon on November 18, 1883, when the telegraph lines transmitted time signals to all major cities. In October 1884, the at Washington DC adopted a proposal which stated that the prime meridian for longitude and timekeeping should be one that passes through the centre of the transit instrument at the in the United Kingdom UK. The conference therefore established the as the prime meridian and GMT as the world's time standard. The US time-zone system grew from this, in which all zones referred back to GMT on the prime meridian. From GMT to UTC GMT was superseded as the international civil time standard by in 1960, when the International Radio Consultative Committee formalized the concept of Coordinated Universal Time, abbreviated as UTC. It is, within about 1 second, mean solar time at 0°. It does not observe daylight saving time. It is one of several closely related successors to Greenwich Mean Time GMT. For most purposes, UTC is considered interchangeable with GMT, but GMT is no longer precisely defined by the scientific community. Standard time zones in the United States are currently defined at the federal level by law §260. The federal law also establishes the transition dates and times at which occurs, if observed. It is ultimately the authority of the , in coordination with the states, to determine which regions will observe which of the standard time zones and if they will observe daylight saving time. As of August 9, 2007, the standard time zones are defined in terms of hourly offsets from. Prior to this they were based upon the at several meridians 15° apart west of. Only the full-time zone names listed below are official; abbreviations are by common use conventions, and duplicated elsewhere in the world for different time zones. The United States uses nine standard time zones. Zones used in states beyond the contiguous U. Minor Outlying Islands Some are outside the time zones defined by 15 U. §260 and exist in waters defined by. In practice, military crews may simply use when on these islands. Because they exist on opposite sides of the , it can, for example, be noon Thursday on Baker and Howland islands while simultaneously being noon Friday on Wake Island. Other outlying islands include , , , and ; ; and , , and. Antarctic research stations : red areas belong to the Central Time Zone. This puts almost all of northern Idaho in the Pacific time zone, except for the small loop described next. This loop to the north creates a curious situation where one can enter a more-westerly time zone by traveling east over one of the bridges across this portion of the Salmon River. Main article: The extended for an additional month beginning in 2007. The start of DST now occurs on the second Sunday in March and ends on the first Sunday in November. Clocks will be set ahead one hour at 2 a. Originally this ran from the last Sunday in April until the last Sunday in October. Two subsequent amendments, in 1986 and 2005, have shifted these days so that daylight saving time now runs from the second Sunday in March until the first Sunday in November. But the , which is by the Navajo Nation and is entirely in Arizona, does not observe DST. See map inset right. National Institute of Standards and Technology, U. Retrieved August 6, 2018. Hawaii-Aleutian HT ; HST -10; HDT -9; DST observed in Aleutian Islands, but not Hawaii.
Where Is The East Coast Time Zone?
ParseExact clientString, format, CultureInfo. Two subsequent amendments, in 1986 and 2005, have shifted these days so that daylight and time now runs from the second Sunday in March until the first Sunday in November. Just confirming the current time. Pick the one exact place and exact time your event will occur and we'll give you a link to email or post on your website. Social train station set its own clock making it difficult to coordinate train schedules and confusing passengers. ToOffset serverOffset ; return serverTime; } catch FormatException { return DateTimeOffset. No big list of world cities to distract anyone, no math required. American railroads maintained many different time zones during the anon 1800s.
