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Please note: These papers were prepared for the Greek Science course taught at Tufts University by Prof. Gregory Crane in the spring of 1995. The Perseus Project does not and has not edited these student papers. We assume no responsibility over the content of these papers: we present them as is as a part of the course, not as documents in the Perseus Digital Library. We do not have contact information for the authors. Please keep that in mind while reading these papers.
A Brief History of Time ...
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Learn the history of daylight saving, from Benjamin Franklin to the present...
Just as sunflowers turn their heads to catch every sunbeam, so too have we discovered a simple way to get more from our sun.
We've learned to save energy and enjoy sunny summer evenings by switching our clocks an hour forward in the summer.
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[an error occurred while processing this directive] AUSTRALIAN TIME ZONE
Three Australian states, Western Australia (WA), Northen Territory (NT) and Queensland (QLD), do not observe Daylight Savings Time. The other states calculate Daylight Savings Time in a following manner: South Australia (SA), New South Wales (NSW), Australian Capital Territory (ACT) and Victoria (VIC) calculate Daylight Savings Time from the last Sunday in October until the last Sunday in March. Tasmania (TAS) calculate Da ...
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CANADA'S TIME ZONES
This page is part of the Teaching & Learning About Canada Website
Summer and Winter Time Zone Maps of Canada
Daylight Savings Time is observed during summer.
(First Sunday in April to last Sunday in October).
( but not in all parts of Canada )
The above maps are from the NRC, National Research Council of Canada, site. Link is below.
Click each map to enlarge.
The standard ...
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SAVING TIME, SAVING ENERGY
Daylight Saving Time, Its History and Why We Use It
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Spring forward...Fall back....
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Coordinated Universal Time (UTC)
Actually, GMT is measured from noon whereas UTC is measured from midnight. However, few use the noon measurement and refer to GMT as if it were actually UTC.
Greenwich Mean Time (GMT) became a time standard in the 19th century for British maritime navigation. Greenwich, England was established as the "Prime Meridian" (longitude = 0 degrees) and the Royal Observatory was built at Greenwich. In 1970 the Coordinated Universal Time (UTC) system ...
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What is `Greenwich Mean Time'?
One question that everyone asks nowadays with hardly a thought is `What's the time?'. Yet only 150 years ago this was a very difficult question to answer. Each town had its own clock and kept its own time. There was no set convention on how to measure time, when a day began or ended or even how long an hour was!
In the middle of the 19th century however, communications such as railways, telegraph and international shipping expanded greatly and so the need was r ...
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Next Eclipse:
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partial: 18:05:03 UT to 19:37:41 UT)
A very slender partial lunar eclipse will be visible over Europe, Africa, Asia, and Australasia. With a magnitude of just 0.190, the partial phase won't be very easy to see; but the shading caused by the penumbral phase should be visible to careful observers.
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Mapsfinder.com - Time Zones
Time Zones | The World | In the News
Your Local Time: Greenwich Mean Time:
World Time Zones: Use the red and green numbers to find the local time below.
The Time Around the World:
West of Greenwich, UK East of Greenwich, UK
11: Kiribati 11: Vanuatu
10: Honolulu, Hawaii 10: Sydney, Australia:
9: Anchorage, Alaska 9: Tokyo, Japan
8: Los Angeles, California 8: Beijing, China | Hong Kong
7: Denver, Colorado 7: Bangkok, Thailand
...
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What is UTC?
Coordinated Universal Time (UTC) is the international time standard. It is the current term for what was commonly referred to as Greenwich Meridian Time (GMT). Zero (0) hours UTC is midnight in Greenwich England, which lies on the zero longitudinal meridian. Universal time is based on a 24 hour clock, therefore, afternoon hours such as 4 pm UTC are expressed as 16:00 UTC (sixteen hours, zero minutes).
Since a day is 24 hours long, the world may be split into 15 degree wide ...
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Note: The time is taken from your browser. If your computer is not set to the correct time, the times will be off.
World Time Zones
Abu Dhabi Adelaide Alaska ...
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home login my profile List countries
or major cities
or favorite locationsQatar
The current time in Qatar is
6:46 AM
( digital or analog )
Saturday, June 10, 2006
Standard Time +0300 UTC
Major Cities include Doha
UTC/GMT is 03:46 on Saturday, June 10, 2006
Useful links for Qatar
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Universal Time Offset and Conversion
Current Universal Time (UT): (Hit the 'Reload' button on your browser to Update)
Tip! You may want to get a digital clock or watch that displays time in 24 hour format; and keep it set to Universal Time.
Determine the UT OFFSET for your time zone:
Ex.: Morning Ex.: Afternoon
1. Write down current UT: ___h ___m 14h 24m 18h 05m
2. Write down current local time: ___h ___m 9h 24m 1h 05m
3. Convert to 24 hour clock: ...
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What time is it, really?
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SPACE TODAY ONLINE COVERING SPACE FROM EARTH TO THE EDGE OF THE UNIVERSE
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Coordinated Universal Time
UTC FAQ WHAT IS TIME?
Coordinated Universal Time (UTC) is the modern implementation of Greenwich Mean Time (GMT). 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 th ...
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Standard Time Around the World
Greenwich Mean Time and the Prime Meridian
Time Zones: International
Time Zones: United States
International Time Adjustments
International Date Line
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. Lines at every 15° longitude were drawn down a map of Earth to create 24 in ...
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Sunrise, Sunset Calendars and Local Time
All information presented here is believed correct, but is not guaranteed.
Local Times are adjusted to Daylight Saving Time, if known.
Print your own custom sunrise and sunset calendar. Moonrise and moonset time and moon phase information is also available. There is a list of predefined cities or you can enter your own location and get a calendar for anywhere in the world.
For users of Windows 95, 98, NT 4.0 and XP operating systems, SunriseSuns ...
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© 1996 swissinfo.netLocal Times Around the World
This guide attempts to list all of the world's countries, and many of its islands. Times consider Daylight Savings Time. Except for the Atlantic, Pacific and Caribbean Islands, islands are often included with either the sovereign country listing, or with the nearest continent.
Asia and Australasia - Pacific Ocean - Europe
Africa - Near and Middle East - Canada/Atlantic
USA - Caribbean - Central America - South America
Maintained by webteam@swissinfo.net
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The Time of Internet
Fabrizio Pollastri
Information and curios, news and notions, Internet sites and services about time measurement, available also in italian. Since 1996 March 14, copies were requested.
Edizione
Italiana
All about the diffusion of Internet time services by IRITI and much about time measurement activities in the world can be found here as a collection of Internet sites and services. To face the subject from the beginning, it is useful the guided tour to time m ...
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Maps of Time
Check the Time
(Close the page to return here)
What is Universal Time?
Coordinated Universal Time (UTC)
Z - Time
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World Time Zones (high resolution - (579K)
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COORDINATED UNIVERSAL TIME (UTC) = ZULU TIME - CONVERSION CHART
RED numbers are your local clock times.
GREEN numbers are the UTC or ZULU time in each respective time zone.
LOCALEDSTESTCDSTCSTMDSTMSTPDSTPST
Midnight04000500050006000600070007000800 ...
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May 24, 1994
(Prepared by NIST's Time and Frequency Division, Boulder, Colo.)
Additional Q&A on Time
Time Questions and Answers from NIST
Are noon and midnight 12 a.m. or 12 p.m.?
This is perhaps the trickiest time question of them all. The best answer is that the terms 12 a.m. and 12 p.m. cause confusion and should not be used.
To illustrate this, consider that "a.m." and "p.m." are abbreviations for "ante meridiem" and "post meridiem." They mean "before noon" and "after noon," r ...
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CalendarsTime Standards
Time Zone
The world is divided into a number of standard time zones. Roughly speaking, there are 24 time zones spaced at intervals of 15° in longitude. (Practically, due to geographic and political factors, the boundaries of time zones are more circuitous. In addition, a few time zones are offset by an odd number of half hours from the Greenwich and U. S. time zones.) Within the confines of each time zone, the hour ...
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Pago Pago
(Samoa)
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(Mountain)
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UTC
(GMT)
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(UK)
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(France)
Rome
(Italy)
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(Iran)
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(India)
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(Thailand)
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(Australia)
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Reference CardZones by CountryWorld TimeTime Zone Converter
Find out the time anywhere in the world with the Time Zone Converter!
Convenience: Plan International travel, phone calls, meetings and much more.
Accuracy: The time zone rules on which the converter is based are updated when local laws or ordinances change to provide you with the most accurate time converter utility on the Net!
What time is it in: Europe/AthensAfrica/AbidjanAfrica/AccraAfrica/Addis_AbabaAfrica/AlgiersAf ...
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Time Zone Map
(Source from University of Texas)
To Index
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Time Zone Table
Click here for a 252Kb PDF World Map of Time Zones from the USNO.
In the NOAA solar calculators, we input the number of hours from local time to UTC. Many time zone tables report the number of hours to add to UTC to get local time. Please use the following convention: Western Hemisphere uses Positive time zone numbers. This is shown in the table below:
Western HemisphereEastern Hemisphere
Hour
Off-Set:Location:Hour
Off-Set:Location:
0 Greenwich, England -1 Mid E ...
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International Time Zones.
Comprehensive table with the time difference between the USA (Eastern, Central, Mountain, Pacific times) and the rest of the world. This information is provided for general interest purposes only. We also provide you with a comprehensive International Dialing Codes table.
GoFluent.comBy convention, weather scientists use o ...
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TIME ZONES and "Z" TIME (UNIVERSAL TIME)
The Current Time in UTC from U.S. Naval Observatory
Since the collection and exchange of weather information are of international concern, use of a single, systematic time keeping scheme is a necessity. By international agreement, the reported times for essentially all meteorological reports are given according to Universal Coordinated Time (UTC), which has replaced the previously used Greenwich Mean Time (GMT). GMT time is also referred to as "Z" or, ...
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TzConvert Script Down
Due to changes in Perl, the tzconvert script as it was written no longer works. In the future I may spend some time trying to integrate this script with perl 5.8, but I don't have the time to do it now. Sorry for the loss of sservice.
Paul Stewart
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U.S. Naval ObservatoryAstronomical Applications Department
What Are the U.S. Time Zones?
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.
To obtain U.S. civil time from UTC ...
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z-distribution/b>
(Math | Distributions | z-Distribution)
The z- is a N(0, 1) distribution, given by the equation:
f(z) = 1/(2PI) e(-z^2/2)
The area within an interval (a,b) = normalcdf(a,b) = e-z^2/2 dz (I ...
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Z-Time
by Harold F. Maybeck
Meteorologist/Lecturer - Natural Sciences Department
Plymouth State College Plymouth, New Hampshire
For many years seamen and navigators have been referring to Greenwich Mean Time (GMT) as "Z-time". GMT has been noted as Greenwich Civil Time (GCT) and lately with the advent of a universal community as Coordinated Universal Time (UTC). Note that the initials UTC do not fit the words Coordinated Universal Time. This is because the United Nations, still considering F ...
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