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Topic: Atlantic Standard Time


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In the News (Fri 27 Nov 09)

  
  15 USC Sec. 260 as Amended (01/24/94)
It is the policy of the United States to promote the adoption and observance of uniform time within the standard time zones prescribed by sections 261 to 264 of this title, as modified by section 265 of this title.
For the purpose of establishing the standard time of the United States, the territory of the United States shall be divided into eight zones in the manner provided in this section.
Within the respective zones created under the authority of sections 261 to 264 of this title the standard time of the zone shall insofar as practicable (as determined by the Secretary of Transportation) govern the movement of all common carriers engaged in interstate or foreign commerce.
tycho.usno.navy.mil /260.html   (451 words)

  
 Atlantic Standard Time Zone - Wikipedia, the free encyclopedia
In Canada, the provinces of New Brunswick, Prince Edward Island, and Nova Scotia are part of the Atlantic Standard Time Zone.
Officially, the entirety of Labrador is also in the Atlantic Standard Time Zone; however, the southeastern tip of that region unofficially uses Newfoundland Standard Time, the time used on the island of Newfoundland.
AST is known as Atlantic Daylight Time (ADT) during daylight saving time, and has one hour added to make it three hours behind UTC (UTC -3).
en.wikipedia.org /wiki/Atlantic_Standard_Time   (182 words)

  
 US Time zones
Standard time within each time zone is an integral number of hours offset from a time scale called Universal Time, Coordinated (abbreviated UTC), maintained by a large number of very precise "atomic clocks" at laboratories around the world, including the U.S. Naval Observatory.
History of Standard Time in the U.S. Standard time in time zones was instituted in the U.S. and Canada by the railroads on 18 November 1883.
Standard time in time zones was not established in U.S. law until the Act of March 19, 1918, sometimes called the Standard Time Act.
time-zones.com /us-time-zones/us-time-zones.htm   (753 words)

  
 The Time Zones of the United States   (Site not responding. Last check: )
Mountain Standard Time [Daylight] is the time observed by the Rocky Mountain states of Colorado, Montana, New Mexico, Utah and Wyoming and portions of the states of Arizona, Idaho, Kansas, Nebraska, North Dakota, Oregon and South Dakota.
Pacific Standard Time [Daylight] is the time observed by the western states of California, Nevada and Washington and portions of the states of Idaho and Oregon.
Atlantic Standard Time is observed year-round in the U.S. territory of Puerto Rico.
www.clockvault.com /timezones   (480 words)

  
 U.S. Time Zones
Standard time within each time zone is an integral number of hours offset from a time scale called Universal Time, Coordinated (abbreviated UTC), maintained by a large number of very precise "atomic clocks" at laboratories around the world, including the U.S. Naval Observatory.
History of Standard Time in the U.S. Standard time in time zones was instituted in the U.S. and Canada by the railroads on 18 November 1883.
Standard time in time zones was not established in U.S. law until the Act of March 19, 1918, sometimes called the Standard Time Act.
aa.usno.navy.mil /faq/docs/us_tzones.php   (673 words)

  
 PST - Pacific Standard Time
Note that during summer daylight saving time/summer time is observed, and PDT is used instead.
An email sent from someone in the PST time zone will have the time zone listed as "-0800" in the headers of the email.
Time zone maps are under development and will be available later
www.timeanddate.com /library/abbreviations/timezones/na/pst.html   (220 words)

  
 International time zones - history
Standard Time uses Greenwich, a borough of London, England as the zero degree meridian, or "Prime Meridian', and divides the world into 24 zones, from pole to pole.
Time is uniform throughout each zone, and differs from the international basis of legal and scientific time, called "Coordinated Universal Time" (UTC), by a set number of hours.
In a few regions, however, the legal time kept is not the same as one of the 24 standard time zones because half-hour or quarter-hour differences are in effect there.
www.owled.com /timezones.html   (388 words)

  
 Standard Time around the World
Standard time was fixed in 1883 to prevent the myriad of short time differences that would result if every locality determined the mean solar time by different meridians, depending on the longitude of the particular place.
Alaska Standard Time is determined by the meridian at 135° west of Greenwich and Hawaii-Aleutian Standard Time is set at the 150° meridian.
Atlantic Standard Time is based on 60° west of Greenwich and is one hour ahead of Eastern Standard Timel Newfoundland Standard Time, based on 52° 30' west, is 30 minutes ahead of Atlantic Standard Time.
www.circ.uab.edu /nypldr/1time/standard.htm   (363 words)

  
 Time zone Summary
Standard meridians occur every 15° of longitudinal displacement from the prime meridian (e.g., 15° W, 30° W, 45° W, etc.) The standard meridians also establish the local noon for the time zone and, therefore, each time zone is defined as being 7.5° longitudinal displacement both west and east of the standard meridian.
Because a time zone ranges 7.5° east and west of a standard meridian, the applicable standard meridian for Rome is the 15° E standard meridian.
Time zones were first proposed for the entire world by Canada's Sir Sandford Fleming in 1876 as an appendage to the single 24-hour clock he proposed for the entire world (located at the center of the Earth and not linked to any surface meridian!).
www.bookrags.com /Time_zone   (3750 words)

  
 The Creation of Standard Time
The times of astronomical and weather phenomena and events that are observed internationally (by treaty, for example) are often given in "Universal Time" (abbreviated (UTC) or "Greenwich Mean Time" (abbreviated GMT).
The two terms are often used synonymously to refer, loosely, to time kept on the Greenwich meridian (longitude zero), five hours ahead of Eastern Standard Time.
The UTC time scale is kept by a large number of highly precise atomic clocks at facilities around the world, including the U.S. Naval Observatory, and there is international coordination in maintaining UTC to better than a nanosecond (billionth of a second) per day.
20at122.20m.com /utc.htm   (510 words)

  
 Space Today Online -- Solar System Planet Earth -- Angkor
The Greenwich time standard was established in the 1840s and old habits die hard, so many people still refer to UTC as GMT.
Most time synchronization needs are met by the UTC time scale broadcast by NIST radio stations WWV and WWVH.
The zones referenced mean solar time to the 24 standard meridians, based 15 degrees east and west of Greenwich, the point from which reckoning for each day should begin.
www.spacetoday.org /Time/UTC.html   (1293 words)

  
 Time zone
Time zones are areas of the Earth that follow the same definition of time.
Time zones partially rectified the problem by setting the clocks of a region to the same mean solar time.
Time zones are generally centered on meridians of a longitude that is a multiple of 15º ; however as the map below shows, the shapes of time zones can be quite irregular because of boundaries of countries.
www.fastload.org /ti/Time_zone.html   (559 words)

  
 time   (Site not responding. Last check: )
During the months of September/October thru March/April, countries in the northern hemisphere are in the winter season and are using Standard Time as shown, while those in the southern hemisphere are in summer and may be observing DST or "Summer Time".
Universal Coordinated Time (UTC), is considered as the universal time zone located at the zero meridian and is used as a worldwide reference for time correlation.
There are approximately 24 standard time zones around the globe which are an integer offset of hours to UTC time.
bigbassbrian.com /time.htm   (420 words)

  
 Universal Time
Sometimes a Z is appended to a time to indicate UT, as in 0935Z.
Times which may be labeled "Universal Time" or "UT" in data provided by the Astronomical Applications Department of the U.S. Naval Observatory (for example, in the annual almanacs) conform to this definition.
UTC is the basis for civil standard time in the U.S. and its territories.
www.astro-tom.com /time/universal_time.htm   (889 words)

  
 Time   (Site not responding. Last check: )
The time would be the same for all places within each zone.
Fleming proposed that this system of Standard Time be adopted around the world.
The clocks are set back to Standard Time on the last Sunday in October.
www.thecanadianencyclopedia.com /index.cfm?PgNm=TCE&TCE_Version=J&SectionId=626313&MenuClosed=0   (216 words)

  
 Eastern Standard Time Zone - Encyclopedia.WorldSearch   (Site not responding. Last check: )
Additionally, the eastern half of Kentucky, the eastern quarter of Tennessee, the majority of Florida, and all of Michigan except Gogebic, Iron, Dickinson and Menominee counties are part of the Eastern Standard Time Zone.
The parts of these states not in the Eastern Standard Time Zone are in the Central Standard Time Zone.
Other parts of the world that keep time by subtracting five hours from UTC include Cuba, most of the Canadian provinces of Quebec and Ontario, the Bahamas, Colombia, Ecuador, Peru, Jamaica, Haiti, and Panama.
encyclopedia.worldsearch.com /eastern_standard_time_zone.htm   (230 words)

  
 AST - AST research, inc., Atlantic Standard Time
AST is a acronym that can contains many meanings which are listed below.
AST research, inc. is not the only word formed from AST.
AST is also derived from Atlantic Standard Time
www.auditmypc.com /acronym/AST.asp   (208 words)

  
 US Time zones
Standard time in the U.S. and its territories is observed within eight time zones.
Time zones in the U.S. are defined in the U.S. Code, Title 15, Chapter 6, Subchapter IX - Standard Time.
Time Zone Clock is FREE for non commercial use, commercial users wishing to buy Time Zone Clock should contact us.
www.time-zones.com /us-time-zones/us-time-zones.htm   (753 words)

  
 Pacific Standard Time Zone   (Site not responding. Last check: )
The Pacific Standard Time Zone ( PST) is a geographic region that keeps time by subtracting eight hours from Coordinated Universal Time ( UTC - 8).
In the United States, the states of Washington and California are located entirely within the Pacific Standard Time Zone.
Most of the Pacific Standard Time zone switches to Pacific Daylight Time ( PDT, UTC - 7) during the summer months, with the exception of the areas surrounding Dawson Creek and Creston in British Columbia.
www.1bx.com /en/Pacific_Standard_Time_Zone.htm   (220 words)

  
 Coordinated Universal Time - Wikipedia, the free encyclopedia
Time zones around the world are expressed as positive and negative offsets from UT. UTC differs by an integral number of seconds from International Atomic Time (TAI), as measured by atomic clocks and a fractional number of seconds from UT.
UTC is a hybrid time scale: the rate of UTC is based on atomic frequency standards but the epoch of UTC is synchronized to remain close to astronomical UT.
International standard UTC time can only be determined to the highest precision after the fact, as atomic time is determined by the reconciliation of the observed differences between an ensemble of atomic clocks maintained by a number of national time bureaus.
tornado.sfsu.edu /geosciences/classes/m356/UTC/UTC.html   (796 words)

  
 Trinidad and Tobago Time Zones | trinidad-guide.info
The time in Trinidad and Tobago is four hours behind Greenwich Mean Time, placing it in the Atlantic Standard Time zone.
Time on the islands is one hour ahead of Eastern Standard Time observed on the East Coast of the United States.
Trinidad and Tobago, do not, however, observe daylight-saving time, which means that in April through October, the time in Trinidad and Tobago will be the same as destinations observing Eastern Standard Time.
trinidad-guide.info /travel.basics/time.zones   (272 words)

  
 Time for the astronomer
Time has been a source of angst and fascination to man since the days of the sundial and the hour glass, but not until we started to travel over great distances has standardised time been an issue.
This was important as they could compare the time of noon at their current location with the time of noon at this fixed geographical point, thus giving them their longitude.
Without getting into the differences between Universal Time which would be insignificant to the amateur, UTC means that this is the position of a given celestial object as it is passing over the meridian of Greenwich.
webhome.idirect.com /~rsnow/time.html   (846 words)

  
 Portugal Time Zones
The 1945 row is the fourth in a group of rows that are all included under "Standard Time, with Summer Time = Standard Time + 1:00 during period (1), superseded by Midsummer Time = Standard Time + 2:00 during period (2):".
The rule says that Summer Time was in effect in Ponta Delgada from 23:00 local time on March 10, 1945 to 00:00 local time on October 28, 1945, and Midsummer Time from April 21, 1945 at 23:00 to August 26, 1945 at 00:00.
According to the EU, any zone where the standard time is UTC should be called "Western European Time" (WET), or, when daylight saving is in effect, "Western European Summer Time" (WEST).
www.statoids.com /tpt.html   (732 words)

  
 Saba Time Zones | saba-guide.info
Time changes can often mark an unpleasant and exhausted start to a vacation, and travelers from destinations outside of North America may have to make adjustments to the time change in Saba.
Atlantic Standard Time is four hours behind Greenwich Mean Time in England.
The Eastern Standard Time observed on the east coast of the United States is one hour behind Atlantic Standard time when daylight savings period is not being observed.
saba-guide.info /travel.basics/time.zones   (304 words)

  
 Time Zones of the United States
The six standard time zones for the United States and a seventh zone which encompasses Puerto Rico and the U.S. Virgin Islands.
The railroads instituted standard time in time zones in the United States and Canada on November 18, 1883.
The Time Zones of the United States map layer shows the six standard time zones for the United States, and a seventh zone, which encompasses Puerto Rico and the U.S. Virgin Islands.
nationalatlas.gov /mld/timeznp.html   (333 words)

  
 NASA - Time Zones and Universal Time   (Site not responding. Last check: )
Universal Time or UT is the precise measure of time used as the basis for all civil time-keeping.
If Daylight Saving Time is in effect in the time zone, you must ADD one hour to the above standard times.
Time zones for countries around the world can be determined with a special Time Zone Map courtesy of the HM Nautical Almanac Office, Royal Greenwich Observatory.
sunearth.gsfc.nasa.gov /eclipse/SEhelp/TimeZone.html   (589 words)

  
 Time
The world is broken into 24 separate time zones which are used to help determine the time in all areas of the world.
Any time zone to the left of this is -GMT or -UT and any time zone to the right of this is +GMT or +UT. Below is a listing of time zone abbreviations, time zone descriptions and the UT difference.
Daylight Saving Time, or DST for short, is time when time in most portions of the United States and other portions of the world where time gains or loses an hour on a specific date.
www.computerhope.com /jargon/t/time.htm   (541 words)

  
 Notes on Legal Time
This provides central standard time as the legal time for the State of Florida, unless duly ordered by the circuit court to be eastern standard time.
In 1948, the Standard Time Act Amendment (1948) allowed the Union Pacifc Railroad to conduct its operations west of Pocatello, Idaho, on Pacifc time.
Within the respective zones created under the authority of this Act the standard time of the zone shall insofar as practicable (as determined by the Interstate Commerce Commission) govern the movement of all common carriers engaged in interstate or foreign commerce.
home.earthlink.net /~walterk1/Patr/Misc/LegalTime.html   (1327 words)

  
 Java Time Zones
The easiest way to deal with dates and times, also known as a timestamp, in a program is to pass the timestamp around everywhere as the number of seconds (or in the case of Java, milliseconds) since "the epoch" or baseline, which is commonly defined as "January 1, 1970 00:00:00 GMT".
It doesn't matter what time zone you're living in, the number of seconds since the baseline will always be the same.
That's all you have to do in Java to display the current time as if the code was actually being run by a machine located in New York.
roninware.com /personal/time/index.jsp   (291 words)

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