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Topic: Pacific Daylight Time


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In the News (Fri 27 Nov 09)

  
  Daylight Time
Many other countries observe some form of "summer time", but they do not necessarily change their clocks on the same dates as the U.S. Daylight time and time zones in the U.S. are defined in the U.S. Code, Title 15, Chapter 6, Subchapter IX - Standard Time.
History of Daylight Time in the U.S. Although standard time in time zones was instituted in the U.S. and Canada by the railroads in 1883, it was not established in U.S. law until the Act of March 19, 1918, sometimes called the Standard Time Act.
Daylight saving time was repealed in 1919, but standard time in time zones remained in law.
aa.usno.navy.mil /faq/docs/daylight_time.html   (501 words)

  
 PDT - Pacific Daylight Time
Note that PDT is a daylight saving time/summer time zone.
PDT is used during summer in these Canadian provinces (PST during winter)
PDT is used during summer in these Mexican states (PST during winter)
www.timeanddate.com /library/abbreviations/timezones/na/pdt.html   (246 words)

  
 Time
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.
Before then, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by some well-known clock (for example, on a church steeple or in a jeweler's window).
Daylight saving time was repealed in 1919, but standard time in time zones remained in law, with the Interstate Commerce Commission (ICC) having the authority over time zone boundaries.
www.rivastro.org /member/beginners/time.html   (815 words)

  
 Virtual Travelog | A Solution for Managing Timezones, Times, and Dates in International Internet Systems
Daylight Saving is the process of changing Local Civil Time, by adding or subtracting a fixed time period, usually and hour.
All Times are recorded with the Name of the local Civil time used to record them and a few denormailzed attributes (Offset and Daylight Savings) for efficiency.
When recording a time with this model you need to know the date and time and the civil time that is being used.
www.virtualtravelog.net /entries/2002/12/a_solution_for_managing_timezones_times_and_dates_in_international_internet_systems.html   (1831 words)

  
 Pacific Time Zone - Wikipedia, the free encyclopedia
The clock time in this zone is based on the mean solar time of the 120th degree meridian west of the Greenwich Observatory.
Nearly all of Nevada, except for the town of West Wendover is on Pacific Time, although certain small towns near the Idaho border, such as Jackpot, observe Mountain Standard Time unofficially.
Most of the Pacific Time zone observes Pacific Daylight Time (PDT, UTC-7) during the summer months, with the exception of the areas surrounding Dawson Creek and Creston in British Columbia.
en.wikipedia.org /wiki/Pacific_Daylight_Time   (397 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 boundaries have changed greatly since their original introduction and changes still occasionally occur.
www.time-zones.com /us-time-zones/us-time-zones.htm   (753 words)

  
 Coordinated Universal Time (UTC)
Time signals and voice announcements of the current UTC are also available from the U.S. Naval Observatory at (202) 762-1069 and (202) 762-1401.
According to NIST, their telephone time announcements are normally delayed by less than 3/100 of a second when using land lines from within the continental United States and the delay variation is generally less than 1/1000 of a second.
Daylight Savings Time (PDT, MDT, CDT, and EDT) is in effect from the first Sunday in April to the last Sunday in October.
www.spacearchive.info /utc.htm   (1363 words)

  
 ASLAPR -- Helpful Links
Standard Time grew out of the need to create train schedules so that the trains could run "on time." Standard Time Zones were established which covered approximately 15 degrees of longitude.
The concept of Daylight Saving Time can be traced back to Ben Franklin and his calculation that French shopkeepers could save one million francs per year on candles if they would reset their clocks to take advantage of more daylight hours during certain times of the year.
The portion of the state within the Pacific Time zone as defined by the U.S. Interstate Commerce Commission was to observe Pacific Time from 1 October to 31 March and from April 1 through September 30 "the equivalent of pacific daylight saving time" was to be observed.
www.lib.az.us /links/daylight.cfm   (1204 words)

  
 Time Values Note
Depending on your location, Time values in the API XML may appear to be different from the time stamps you see on the eBay.com Web site and the Sandbox Web site.
By international convention, Greenwich Mean Time (GMT) is used as the basis for determining the official time in all time zones around the world.
During Pacific Daylight Time (PDT), the GMT offset for PDT is -7:00 (-8 + 1):
developer.ebay.com /DevZone/docs/API_Doc/Functions/Notes/TimeNote.htm   (771 words)

  
 NSPR Reference: Chapter 14 Date and Time
A time instant is represented by its position on the time line relative to the origin, called the epoch.
A time parameters structure that expresses the time zone offsets at the specified time.
This function adjusts the fields of the specified time structure using the specified time parameter callback function, so that they are in the proper range.
www.mozilla.org /projects/nspr/reference/html/prtime.html   (1154 words)

  
 Pacific time - HighBeam Encyclopedia
Pa·cif·ic time the standard time in a zone including the Pacific coastal region of the US and Canada, specifically: ∎  (Pacific Standard Time, abbrev.: PST) standard time based on the mean solar time at longitude 120° W, eight hours behind GMT.
Pacific Triangular half-time score: Fiji 23 Tonga 6
Pacific Rim, Gingko Int'l., Possible Dreams, and Silvestri/Syratech are among companies that will take out market-time showrooms at the New York Intl.
www.encyclopedia.com /doc/1O999-pacifictime.html   (394 words)

  
 Online Banking Terms - Pacific Trust Bank
For Recurring Payments, this means that you must allow additional time for months in which weekends or holidays reduce the number of business days between the recurring scheduled payment date and the bill's actual due date.
If more time is needed, however, we may, at our sole discretion, take up to forty-five (45) days to investigate a complaint or question.
Pacific Trust may modify the terms and conditions applicable to either Service from time to time upon mailing or delivering a notice of the modifications to you at the address shown on our account records, and the revised terms and conditions shall be effective at the earliest date allowed by applicable law.
www.pacifictrustbank.com /tech/HA_disclosure.html   (3941 words)

  
 Pacific Northwest Time Zones
Northern Idaho, which relates commercially to the state of Washington, is on Pacific Time, while the rest of the state, including Boise, is on Mountain Time.
Daylight Savings Time, also known as "Summer Time" is observed during summer when clocks are set forward one hour at 2 a.m.
This public service is cooperatively provided by the two time agencies of the United States: a Department of Commerce agency, the National Institute of Standards and Technology (NIST), and its military counterpart, the U.
www.gonorthwest.com /Visitor/planning/time.htm   (456 words)

  
 Time Zone Localization
It is also being circulated to the tz mailing group for comment, since the Olson time zone database is used as the source for time zone identifiers and computation rules.
The translation for a time zone identifier does not have to follow this pattern -- it can translate the city name or provide a more general description; it should be whatever is most customary and understandable for the target language in question.
Where there is daylight, it does lose information -- although actually not much -- but avoids the problem of using cities that may either be unknown to the user or not in a script s/he can read.
www.unicode.org /cldr/data/docs/design/formatting/time_zone_localization.html   (2820 words)

  
 Time Conversion Table
Pacific Daylight Time starts in mid April and ends in mid October.
If the UTC is less than 7 during PDT or less than 8 during PST, add the difference to
21 - 12 = 9) or 10PM PDT (5 - 7 = -2 + 24 = 22 - 12 = 10).
www.wrh.noaa.gov /eka/satellite/timetable.html   (110 words)

  
 Time Zones by Server   (Site not responding. Last check: 2007-10-20)
The time zone for the public, premium, and merging servers are set out in the boxes below The general rule is::
The result for users in the Pacific, Asia, and Europe was that "Today" on the calendar would not change when local time passed midnight but instead would change when midnight passed in the USA, some hours later.
And Indonesia, Japan, Korea, New Zealand, Thailand, and Vietnam are not on GMT +8 time.
www.calendars.net /timezone.htm   (313 words)

  
 123Greetings.com : Help Q & A
Daylight Saving Time is not observed in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, the Eastern Time Zone portion of the State of Indiana, and by most of Arizona (with the exception of the Navajo Indian Reservation in Arizona).
Arizona (AZ) - is on Pacific Time in summer and on Mountain Time in winter.
The difference between our (Pacific Daylight Time) and UTC is 7 hours.
www.123greetings.com /help/FAQ0084.html   (340 words)

  
 →    world time — world clock — time zones — current time
You can change these times by setting your preferences.
All world times are automatically adjusted based upon time zones and daylight saving time when necessary.
No matter which time zone you are looking for, timegenie.com does all of the time zone and daylight saving time calculations for you.
www.timegenie.com   (503 words)

  
 Pacific Time - Wikipedia, the free encyclopedia
Pacific Standard Time (PST), a time zone on the west coast of the United States, Canada and Mexico
Pacific Daylight Time (PDT), a daylight savings time zone for PST
Pacific Time a radio program produced by KQED and carried on several other NPR stations
en.wikipedia.org /wiki/Pacific_Time   (107 words)

  
 Mars Exploration Rover Mission: Mars for Press
Pacific Daylight Time) today when its Delta II launch vehicle thundered aloft from Cape Canaveral Air Force Station, Fla.
Pacific Daylight Time on June 24), will be targeted to a separate site with different signs of a watery past.
The spacecraft's cruise-phase schedule before arriving at Mars next Jan. 4, Universal Time (Jan. 3 in Eastern and Pacific time zones), includes a series of tests and calibrations, plus six opportunities for maneuvers to adjust its trajectory.
mars.jpl.nasa.gov /mer/newsroom/pressreleases/20030610a.html   (296 words)

  
 What Are Time Zones?
UTC define the universal time zone, which all the other time zones are relative to.
The basis for this is Z - Zulu time - Zero meridian time - the same as UTC It's a convention to assign letters to time zones, where Z= Zero meridian, and Zulu is the word that represents the letter Z, when it's used in communication.
International Date Line is between time zones M and Y (24 hours/one day differs) The letter 'J' for 'Juliet' is used to refer to local time of the observer.
www.stargatefan.com /references/military/timezones.html   (565 words)

  
 Daylight Savings Time
When Windows NT automatically adjusts for daylight savings time, the times on files on Windows NT file system (NTFS) partitions and the events in the event logs are retroactively shifted by one hour, even though the files and event records were created before the daylight savings time change.
When you select your local time zone for the system, the appropriate number of hours are added or subtracted to the stored GMT value.
In other words, if you are viewing an event remotely that actually occurred at 8:00 PM Central Daylight Time, the time displayed for the event on your computer will be 6:00 PM when you view the event from the Pacific Daylight Time zone.
www.fileware.com /daylight.htm   (456 words)

  
 U.S. Time Zones   (Site not responding. Last check: 2007-10-20)
Standard time in the U.S. and its territories is observed within nine 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.
The Department of Transportation is responsible for time zone boundaries.
aa.usno.navy.mil /faq/docs/us_tzones.html   (665 words)

  
 Pacific Daylight Time  PDT = GMT-7 (USA & Canada)
Pacific Standard Time (PST) is 8 hours behind Greenwich Mean Time (GMT-8).
During DST PT or PDT is 7 hours behind Greenwich Mean Time (GMT-7).
After the Summer months Pacific Time is shifted back by 1 hour to US Pacific Standard Time (PST) or (GMT-8).
wwp.greenwichmeantime.co.uk /time-zone/usa/pacific-time/pacific-daylight-time.htm   (354 words)

  
 SimpleTimeZone .NET Framework Class
For this example, assume that the switches occur at 2:00am, and daylight savings time "springs forward" (adds an hour in the Spring) and "falls back" (removes the hour in the Autumn).
For example, let's say that you recorded appointments using local times in a database that was located in the Eastern Time Zone, then your company moved all its operations to the west coast.
Time zones are not physical entities, they are political and social constructs.
www.michaelbrumm.com /simpletimezone.html   (1255 words)

  
 Universal Time   (Site not responding. Last check: 2007-10-20)
We use Universal Coordinated Time (UTC) to define a time that doesn't depend on where we are on Earth.
Universal Time, Greenwich Mean Time (GMT), and Zulu (Z), are based at the prime meridian (0° longitude) of Earth and are used by scientists to avoid confusion of time zones.
The result of your arithmetic is the local time in your Pacific Rim country on a 24 hour clock.
vathena.arc.nasa.gov /curric/weather/pacrim/utime.html   (290 words)

  
 RTL time() function result varies greatly between 16-bit and 32-bit applications.
When I use the time function I get a value that is about 18000 seconds off, giving me a time that is hours off of the actual time.
Where zzz is a three-character string representing the name of the current time zone.
For example, the string "PDT" could be used to represent Pacific Daylight Savings Time.
dn.codegear.com /article/10401   (320 words)

  
 Scott Hanselman's Computer Zen - Daylight Savings Time and Windows
The time shift occurs twice per year in North America: one hour is lost on the first Sunday in April, and the hour is gained back on the last Sunday in October.
I was thinking that DST was the period of time during the winter.
Then, if you change the time zone by using the Date and Time item in Control Panel, the daylight saving time start and end dates for the time zone that you modified are reset to the default values (in "Time Zones", not "Time Zone Information").
www.hanselman.com /blog/DaylightSavingsTimeAndWindows.aspx   (869 words)

  
 Time Zones
Eastern Daylight Time subtract 4 hours from UTC
Pacific Daylight Time subtract 7 hours from UTC
Pacific Standard Time subtract 8 hours from UTC
nario.com /hurricane/timezones.htm   (236 words)

  
 :: NASA Quest > Q and A ::   (Site not responding. Last check: 2007-10-20)
Note: Times for chats with NASA experts are listed according to Pacific Daylight Time.
Although we prefer that you attend our live chats, you will have various opportunities to submit your questions early if you are unable to attend at the scheduled time.
The featured expert(s) will log on at various times for the duration of the forum to answer questions posted.
quest.nasa.gov /qchats/zones   (435 words)

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