Etymologie, Etimología, Étymologie, Etimologia, Etymology, (griech.) etymología, (lat.) etymologia, (esper.) etimologio
@_ Welt, Mundo, Monde, Mondo, World, (lat.) orbis (terrae), (esper.) mondo
Zeit, Tiempo, Temps, Tempo, Time, (esper.) tempo

BET
Bering Standard Time (W3)

daylightmap
DaylightMap

Introduction

DaylightMap shows the pattern of night and day on a Google map, for any area of the Earth, for any date and time. It also allows you to select up to ten locations on the map; in addition to seeing at a glance whether it's daytime there, you can show their local time, sunrise and and sunset times, and length of day. These locations can be remembered for future visits, saved as a bookmark, or sent to other people as a web link. This site can thus function as a graphical world clock, and can be used to show relative times of any future or past event.
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die
World Sunlight Map

Watch the sun rise and set all over the world on this real-time, computer-generated illustration of the earth's patterns of sunlight and darkness. The clouds are updated every 3 hours with current weather satellite imagery.

DOMES Numbering System (W3)

Historically, the "DOMES numbering system" was designed at the start of the MERIT campaign in early 80s in order to give an unambiguous identifier to all instrument reference points and markers involved in this MERIT campaign. The first publication of this information was done in a catalogue published by the "Bureau International de l'Heure" ("BIH") and entitled "Directory Of MERIT Sites", hence "DOMES". The "BIH", together with the "IGN" group, was acting as MERIT coordinating center.

The description of the DOMES numbering can be found in MERIT/COTES JOINT WORKING GROUPS, MERIT CAMPAIGN : CONNECTION OF REFERENCE FRAMES, IMPLEMENTATION PLAN, 1983.

Example: Looking at the 10002M006 DOMES number:

• the first 3 digits indicate the area, usually the country (100=France)
• the next 2 digits designate the site number within the country (02=Grasse)
• the next letter indicates the tracking point ("M" is a monument point such as pillar, pole, brass mark... ; "S" indicates the reference point of an instrument such as the intersection of axes of an SLR telescope, reference point of a VLBI antenna, DORIS or GPS Antenna Reference Point)
• the last 3 digits represent a sequential point number (here 006=GPS Pillar/brass mark)

• IGN: Institut Geographique National, Paris
• MERIT: Monitoring of Earth Rotation and Intercomparison of Techniques (Observation campaign)
• IERS: International Earth Rotation Service
• ITRF: International Terrestrial Reference Frame
• VLBI: Very Long Baseline Interferometry
• SLR: Satellite Laser Ranging
• GPS: Global Positioning System
• DORIS: Doppler Orbitography and Radiopositioning Integrated by Satellite (Two-way radiopositioning system)

DSW (W3)
Weltbevölkerungsuhr

...
Wer wir sind
Die Deutsche Stiftung Weltbevölkerung (DSW) ist eine international tätige Entwicklungsorganisation.

Gegründet wurde sie 1991 als private gemeinnützige Stiftung von dem Hannoveraner Unternehmer Erhard Schreiber, der Dirk Roßmann als weiteren Stiftungsgründer gewinnen konnte. Seit 2004 ist Christian Schrom aus Moers als offizieller Mitstifter dabei. Neben der Zentrale in Hannover unterhält die DSW vier Länderbüros in Äthiopien, Kenia, Tansania und Uganda und ein Büro in Brüssel.
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Die Weltbevölkerungsuhr zählt natürlich nicht wirklich die Menschen, die tagtäglich auf der Erde geboren werden oder sterben. Ihr liegen Daten des US-amerikanischen Population Reference Bureau (PRB) zugrunde. Experten beim PRB errechnen den Zuwachs der Weltbevölkerung bis auf die Sekunde.

• pro Jahr: 81.938.000 Menschen
• pro Monat: 6.828.167 Menschen
• pro Woche: 1.575.731 Menschen
• pro Tag: 224.488 Menschen
• pro Stunde: 9.354 Menschen
• pro Minute: 156 Menschen
• pro Sekunde: 2,6 Menschen

Hier finden Sie ausgewählte soziale und demographische Daten zu mehr als 180 Ländern und den einzelnen Regionen der Welt.

Von den aktuellen Bevölkerungszahlen, der Geburtenrate, der Lebenserwartung, der Zahl der HIV-Infizierten bis hin zu Bevölkerungsprojektionen für die nächsten 50 Jahre: Wir bieten Ihnen insgesamt 17 Indikatoren im Überblick zum Land oder der Region Ihrer Wahl.

Wählen Sie hier das Land, zu dem Sie Informationen wünschen:

Afghanistan Ägypten Albanien Algerien Andorra Angola Antigua und Barbuda Äquatorialguinea Argentinien Armenien Aserbaidschan Äthiopien Australien Bahamas Bahrain Bangladesch Barbados Belgien Belize Benin Bhutan Bolivien Bosnien-Herzegowina Botswana Brasilien Brunei Bulgarien Burkina Faso Burundi Chile China China, Hongkong (SAR) China, Macau (SAR) Costa Rica Dänemark Deutschland Domikanische Republik Dominica Dschibuti Ecuador El Salvador Elfenbeinküste Eritrea Estland Fidschi Finnland Frankreich Französisch-Guyana Französisch-Polynesien Gabun Gambia Georgien Ghana Grenada Griechenland Großbritannien und Nordirland Guadeloupe Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Honduras Indien Indonesien Irak Iran Irland Island Israel Italien Jamaika Japan Jemen Jordanien Kambodscha Kamerun Kanada Kap Verde Kasachstan Katar Kenia Kirgisistan Kiribati Kolumbien Komoren Kongo Kongo, Demokrat. Republik (Zaire) Kroatien Kuba Kuwait La Réunion Laos Lesotho Lettland Libanon Liberia Libyen Liechtenstein Litauen Luxemburg Madagaskar Malawi Malaysia Mali Malta Marokko Marshallinseln Martinique Mauretanien Mauritius Mayotte Mazedonien Mexiko Moldawien Monaco Mongolei Montenegro Mosambik Myanmar Namibia Nauru Nepal Neukaledonien Neuseeland Nicaragua Niederlande Niger Nigeria Nordkorea Norwegen Oman Österreich Ost-Timor Pakistan Palästinensische Autonomiegebiete Palau Panama Papua-Neuguinea Paraguay Peru Polen Portugal Puerto Rico Ruanda Rumänien Russische Föderation Salomonen Sambia Samoa San Marino Sao Tome und Principe Saudi-Arabien Schweden Schweiz Senegal Serbien Seychellen Sierra Leone Singapur Slowakei Slowenien Somalia Spanien Sri Lanka St. Kitts und Nevis St. Lucia St. Vincent und die Grenadienen Südafrika Sudan Südkorea Suriname Swasiland Syrien Tadschikistan Taiwan Tansania Thailand Togo Tonga Trinidad und Tobago Tschad Tschechische Republik Tunesien Türkei Turkmenistan Tuvalu Uganda Ukraine Ungarn Usbekistan Vanuatu Venezuela Vereinigte Arabische Emirate Vereinigte Staaten Vietnam Weißrussland Westsahara Zentralafrikanische Republik Zypern

Wählen Sie hier die Region, zu der Sie Informationen wünschen:
Welt Industrieländer Entwicklungsländer Afrika Lateinamerika und Karibische Inseln Nordamerika Europa Asien

EST (W3)

GMT, Greenwich Mean Time (W3)

The times of various events, particularly astronomical and weather phenomena, are often given in "Universal Time" (abbreviated "UT") which is sometimes referred to, now colloquially, as "Greenwich Mean Time" (abbreviated "GMT").

"Greenwich Mean Time" is a time scale based on the apparent motion of the "mean" sun with respect to the meridian through the Old "Greenwich Observatory" (zero degrees longitude).
The "mean" sun is used because time based on the actual or true apparent motion of the sun doesn't "tick" at a constant rate. The earth's orbit is slightly eccentric and the plane of the earth's orbit is inclined with respect to the equator (about 23-1/2 degrees) hence at different times of the year the sun appears to move faster or slower in the sky. That's why an uncorrected sundial can be "wrong" (if it is supposed to be telling "mean time") by up to 16 minutes. So if the mean (i.e. corrected) sun is directly over the meridian through Greenwich, it is exactly 12 noon GMT or 12:00 GMT (Prior to 1925, astronomers reckoned mean solar time from noon so that when the mean sun was on the meridian, it was actually 00:00 GMT. This practice arose so that astronomers wouldn't have a change in date during a night's observing. Some in the astronomical community still use the pre-1925 definition of GMT in the analysis of old data although it is recommended that the term Greenwich Mean Astronomical Time now be used to refer to time reckoned from noon.)
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GPS (W3)

UTC is the time distributed by standard radio stations that broadcast time, such as WWV and WWVH. It can also be obtained readily from the "Global Positioning System" ("GPS") satellites.
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hereistoday.com
Zeitreise zum Anfang der Erde vor 4.540 Jahren

ibm.com
Generalized and UTC time

There are different notations used to designate date and time-related information. For example, the fourth day of February in the year 1999 can be written as:
...
Directory Server standardizes the timestamp representation by requiring the LDAP servers to support two syntaxes:

The Generalized Time syntax, which takes the form: YYYYMMDDHHMMSS[.|,fraction][(+|-HHMM)|Z]
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IERS (W3)

Acronyms

The following acronyms are related to the IERS and to earth rotation and reference systems in general. They are used at this web site and in IERS publications. Additions are welcome.

Glossary

The following terms are related to the IERS and to Earth rotation and reference systems in general.

Barycentric Coordinate Time (TCB) | Celestial Ephemeris Origin (CEO) | Celestial Intermediate Pole (CIP) | coordinate time | Coordinated Universal Time (UTC) | Earth Rotation Angle (ERA) | Fifth Fundamental Catalogue (FK5) | Geocentric Coordinate Time (TCG) | International Atomic Time (TAI) | International Celestial Reference Frame (ICRF) | International Celestial Reference System (ICRS) | leap second | Modified Julian Day (MJD) | Non-Rotating Origin: see Celestial Ephemeris Origin | pole angles | stellar angle: see Earth Rotation Angle | Temps-coordonnée barycentrique: see Barycentric Coordinate Time | Temps-coordonnée géocentrique: see Geocentric Coordinate Time | Terrestrial Ephemeris Origin (TEO) | Terrestrial Time (TT) | Universal Time (UT1)

IERS Web site map: Home page | The IERS | About the IERS | History | Earth orientation data | Standard EOP Data Files | Daily EOP Data Files | IERS Bulletin B: Monthly Earth Orientation Data | IERS Bulletin C: Announcement of Leap Seconds in UTC | IERS Bulletin D: Announcement of DUT1 | The International Celestial Reference System (ICRS) | The International Celestial Reference Frame (ICRF) | The International Terrestrial Reference System (ITRS) | The International Terrestrial Reference Frame (ITRF) | Geophysical Fluids Data | Co-seismic Excitation of Earth Rotational and Gravitational Changes | Glacial Isostatic Adjustment | Data of Core Angular | Geocenter Variations | Oceanic Tidal Angular Momentum (OTAM) | Oceanic Tidal Variations in Earth Rotation | Low-degree Spherical Harmonics of Ocean and Atmospheric Tides | Model for Global Oceanic Angular Momentum | Two Models for Oceanic Center-of-Mass | Model for Ocean Bottom Pressure | Measurements of Ocean Bottom Pressure | Continental Water Storage Data | Continental Water Flux Data | Effective Atmospheric Angular Momentum Functions | Spherical Harmonic Coefficients of Surface Pressure | Global Friction and Mountain Torque | Earth Surface Deformation due to Surface Mass Loading | Gravity Variations due to Surface Mass Loading | Publications | IERS Annual Reports | International GNSS Service (IGS) | International Laser Ranging Service (ILRS) | International VLBI Service (IVS) | International DORIS Service (IDS) | Combination Centres | ITRS Combination Centres | Deutsches Geodätisches Forschungsinstitut (DGFI) | Geomatics Canada, Geodetic Survey Division | Institut Géographique National (IGN) | Combination Research Centres | Astronomical Institute, Academy of Sciences of the Czech Republic, and Department of Geodesy, Czech Technical University, Prague | Deutsches Geodätisches Forschungsinstitut (DGFI) | Forschungseinrichtung Satellitengeodäsie, Technical University Munich (FESG) | Forsvarets forskningsinstitutt (FFI, Norwegian Defence Research Establishment) | GeoForschungsZentrum Potsdam (GFZ) | Geodetic Institute of the University of Bonn (GIUB) | Groupe de Recherches de Géodésie Spatiale (GRGS) | Institute of Applied Astronomy, St. Petersburg (IAA) | Institut Géographique National (IGN), Ecole Nationale des Sciences Géographiques (ENSG), Laboratoire de Recherche en Géodésie (LAREG) | Jet Propulsion Laboratory (JPL) | The rotating earth: General information | Measuring the irregularities of the earth's rotation | Earth Orientation Parameters (EOP) | Universal time (UT1) and Length of Day (LOD) | Universal time | Coordinated Universal Time (UTC) | Table 1: Relationship between TAI and UTC | Table 2: Offsets and step adjustments of UTC | Polar motion | Figure 1: Polar motion, 1994-1997 | Figure 2: X-coordinate of the pole | Figure 3: Y-coordinate of the pole | Table 1: Coordinates of the mean rotation axis | Celestial motion of the pole: precession and nutation | The International Celestial Reference System (ICRS) | The International Terrestrial Reference System (ITRS) | IAU and IUGG recommendations on reference systems and on the IERS | IAU(1997) Recommendations B1 to B6 | vB1. On the use of Julian Dates and Modified Julian Dates | B2. Adopting the International Celestial Reference System (ICRS) and charging the ICRS IAU Working Group | B3. On non-rigid Earth Nutation theory | B4. Creating the ICRS Working Group to study and make recommendations on the consequences of the adoption of the ICRS | B5. On Relativity in Celestial Mechanics and in Astrometry | B6. Encouraging VLBI and LLR observations | IAU(1991) Recommendations I to IX | Geocentric Coordinate Time (TCG) | Barycentric Coordinate Time (TCB) | Terrestrial Time (TT) | Barycentric Dynamical Time (TDB) | Global Positioning System (GPS) | Satellite Laser Ranging (SLR) | Lunar Laser Ranging (LLR) | Very Long Baseline Radio Interferometry (VLBI) | Doppler Orbitography by Radiopositioning Integrated on Satellite (DORIS) | Links | Earth rotation and IERS | Geodesy and other geosciences | Geosciences in general | Geodesy | General information | Services | Techniques | Global Positioning System (GPS) | Satellite Laser Ranging (SLR) | Special items | Projects | Data formats | Mailing Lists | Publications | Bibliographies | Societies | Addresses | Institutions | Other link lists | Mapping and photogrammetry | Geophysics | Geography | Meteorology | Other link lists | Astronomy | General Information | Data centres and data bases | Astronomical literature | Societies | Institutions | Planetariums | Other link lists | Space research | Mathematics | Physics | Books and papers | Computers and informatics | Link lists
...

Internetzeit, Swatch beat, NewBeats (W3)

• 06:00h = 250 NewBeats
• 12:00h = 500 NewBeats
• 18:00h = 750 NewBeats
• 24:00h = 1.000 NewBeats

leap second (W3)

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One can think of UT1 as being a time determined by the rotation of the Earth, over which we have no control, whereas UTC is a human invention. It is relatively easy to manufacture highly precise clocks that keep UTC, while the only "clock" keeping UT1 precisely is the Earth itself. Nevertheless, it is desirable that our civil time scale not be very different from the Earth's time, so, by international agreement, UTC is not permitted to differ from UT1 by more than 0.9 second. When it appears that the difference between the two kinds of time may approach this limit, a one-second change called a "leap second" is introduced into UTC. This occurs on average about once every year to a year and a half.
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newearthtime
Die neue Zeit im Internet

qlock
Zeit an jedem Ort der Erde per Mouse-over

swr
Weltzeit

SWR2 Wissen - Montag, 9. Januar 2006 - Weltzeit - Von Jan Lublinski
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Weltweit sorgen 200 Atomuhren dafür, dass die Informations-Gesellschaft nicht aus dem Takt kommt. Die koordinierte Weltzeit UTC ist ein gewichteter Mittelwert aus den besten Zeitgebern: Uhren, die im zurückliegenden Jahr besonders nahe am Mittelwert lagen, bestimmen zu einem großen Anteil die Weltzeit im neuen Jahr. Betrachtet man etwas genauer, welche Uhren hier den größte Einfluss haben, so stellt sich heraus: Die amerikanischen Militärs sind die heimlichen Herren der Zeit.
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thetimenow.com
World Clock

• World Clock
• Time Zones
• Weather & Forecast
• Tools
• Opening Times
• Astronomy
• More
• United States List

timeanddate.com
Time and Date Worldwide
World Clock
Zeit und Datum weltweit
Weltzeituhr
Time zone acronyms and abbreviations

• Time: The World Clock | Full World Clock | Personal World Clock | Time Zone Converter | Meeting Planner | and more...
• Date: Calendar | Monthly Calendar | Calendar Customizer | Duration between two dates | What date is it in 500 days? | and more...
• World Time Search
• Calendar Generator
• Counters: Countdown to New Year 2006 | Countdown to any other date | and more...

These pages describe the time zone abbreviations used in some regions of the world.
Continents/Regions: North America | Australia | Europe | Military | More regions will be available later
A | ACDT | ACST | ADT | AEDT | AEST | AKDT | AKST | AST | AWDT | AWST | B | BST | C | CDT | CEDT | CEST | CET | CST | CST | CST | CXT | D | E | EDT | EEDT | EEST | EET | EST | EST | EST | F | G | GMT | H | HAA | HAC | HADT | HAE | HAP | HAR | HAST | HAT | HAY | HNA | HNC | HNE | HNP | HNR | HNT | HNY | I | IST | K | L | M | MDT | MESZ | MEZ | MST | N | NDT | NFT | NST | O | P | PDT | PST | Q | R | S | T | U | UTC | V | W | WEDT | WEST | WET | WST | WST | X | Y | Z

Time

• World Clock Main Page
• The World Clock - long list
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Clocks for other sites

• Configurable clock for your site

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• Multiple calculators for Sun and Moon
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• Read background info about holidays and observances for many countries

Date

• Calendar Main Page
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Day and Night World Map

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twinsun
Sources for Time Zone and Daylight Saving Time Data

• The tz database
• Web pages using recent versions of the tz database
• Other time zone database formats
• Other tz compilers
• Other tz binary file readers
• Other tz-based time zone software
• Other time zone databases
• Maps
• Time zone boundaries
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• National histories of legal time: Australia | Austria | Belgium | Brazil | Canada | Chile | Germany | Israel | Mexico | Malaysia | Netherlands | New Zealand | Norway | Singapore | United Kingdom
• Precision timekeeping
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• Related indexes

uhrzeit
Weltzeit
Zeitzonen: Die Zeitzonen der wichtigsten Länder

Zeitverschiebung: Die Zeitzonen der wichtigsten Länder

Uni Erlangen
Timezones

Available Timezones
 Australia:    Canada:               US:               MISC:
 LHI           Atlantic              Alaska            CET         Cuba
 NSW           Central               Aleutian          EET         Egypt
 North         East-Saskatchewan     Arizona           GB-Eire     Greenwich
 Queensland    Eastern               Central           Hongkong    Iceland
 South         Mountain              East-Indiana      Iran        Israel
 	      Newfoundland          Eastern           Jamaica     Japan
 Victoria      Pacific               Hawaii            Libya       MET
 West          Yukon                 Michigan          NZ          Navajo
 Yancowinna                          Mountain          PRC         Poland
                                     Pacific           ROC         ROK

 Brazil:     Chile:        Mexico:    Samoa             Singapore   Turkey
 Acre        Continental   BajaNorte                    W-SU        WET
 DeNoronha   EasterIsland  BajaSur
 East                      General
 West

usno
Data Services

Rise/Set/Transit/Twilight Data

• Complete Sun and Moon Data for One Day
• Table of Sunrise/Sunset, Moonrise/Moonset, or Twilight Times for an Entire Year
• Rise/Set/Transit Times for Major Solar System Objects and Bright Stars
• Duration of Daylight/Darkness Table for One Year

Phases of the Moon

• Dates of Primary Phases of the Moon
• Fraction of the Moon Illuminated
• What the Moon Looks Like Now

Eclipses and Transits

• Eclipses of the Sun and Moon
• Solar Eclipse Computer
• Computes circumstances for selected solar eclipses at any given location
• Lunar Eclipse Computer
• Computes circumstances for selected lunar eclipses at any given location
• Recent and Upcoming Transits of Mercury and Venus
• Transit Computer
• Computes circumstances for selected transits of Mercury and Venus at any given location

Positions of Selected Celestial Objects

• Altitude and Azimuth of the Sun or Moon During One Day
• Topocentric Configuration of Major Solar System Bodies
• Provides tables of low-precision topocentric positions for the Sun, Moon, major planets, and Pluto
• Geocentric Positions of Major Solar System Objects and Bright Stars
• Provides high-precision geocentric positions for the Sun, Moon, major planets, Pluto, and selected bright stars
• Topocentric Positions of Major Solar System Objects and Bright Stars
• Provides high-precision topocentric positions for the Sun, Moon, major planets, Pluto, and selected bright stars

Synthetic Views of Selected Solar System Bodies

• What the Earth Looks Like Now
• Day and Night Across the Earth
• Creates synthetic views of the Earth's surface for specified date and time
• Apparent Disk of Solar System Object

Simulates appearance of selected solar system bodies in small telescope for specified date and time Dates

• Julian Date Conversion

Celestial Navigation

• Celestial Navigation Data
• Computes almanac data for major solar system bodies and navigational stars for an assumed position and time
• Navigational Star Chart

UT, UTC (W3)
What is Universal Time?
A Few Facts Concerning GMT, UT, and the RGO

The times of various events, particularly astronomical and weather phenomena, are often given in "Universal Time" (abbreviated "UT") which is sometimes referred to, now colloquially, as "Greenwich Mean Time" (abbreviated "GMT").
...
However, in the most common civil usage, UT refers to a time scale called "Coordinated Universal Time" (abbreviated "UTC"), which is the basis for the worldwide system of civil time.
UTC is the time distributed by standard radio stations that broadcast time, such as WWV and WWVH. It can also be obtained readily from the "Global Positioning System" ("GPS") satellites.
One can think of UT1 as being a time determined by the rotation of the Earth, over which we have no control, whereas UTC is a human invention. It is relatively easy to manufacture highly precise clocks that keep UTC, while the only "clock" keeping UT1 precisely is the Earth itself. Nevertheless, it is desirable that our civil time scale not be very different from the Earth's time, so, by international agreement, UTC is not permitted to differ from UT1 by more than 0.9 second. When it appears that the difference between the two kinds of time may approach this limit, a one-second change called a "leap second" is introduced into UTC. This occurs on average about once every year to a year and a half.
...

Richard B. Langley, Geodetic Research Laboratory, Dept. of Geodesy and Geomatics Engineering, University of New Brunswick,Fredericton, N.B., Canada E3B 5A3

In answer to the question "Does anyone know the exact difference between "GMT" and "UTC"?" here are a few facts concerning "Greenwich Mean Time", "Universal Time", and the "Royal Greenwich Observatory".
...
The time scale based on the atomic second but corrected every now and again to keep it in approximate sync with the earth's rotation is known as "UTC" or "Coordinated Universal Time".

webexhibits
Daylight Saving Time
When and why do we change our clocks?

• When we change our clocks
• Incidents and anecdotes
• Rationale & original idea
• Opposition & obstacles
• First there was Standard time
• Early adoption and U.S. law
• Worldwide daylight saving

weltbevoelkerung
Weltbevölkerungsuhr

welt-zeit-uhr
Welt-Zeit-Uhr

Die Zeitzonen aller Länder werden auf einen Blick dargestellt. Die Angaben der Uhrzeit in den Zeitzonen beziehen sich auf die jeweilige Winterzeit. Die Verwendung der Sommerzeit kann von Land zu Land, manchmal auch innerhalb eines Landes, sehr unterschiedlich sein. Sie wird daher nicht berücksichtigt. Oft ist es jedoch passend, bei Ländern auf der Nordhalbkugel während der deutschen Sommerzeit eine Stunde zur angegebenen Zeit zu addieren.
Die Sommerzeit in Deutschland beginnt am letzten Sonntag im März und endet am letzten Sonntag im Oktober jeweils um 2 Uhr morgens. Sie berechnet sich durch die Addition von einer vollen Stunde.

worldtimeserver
Worldtime
Weltzeit

Current Times | Time Converter | Meeting Planner | Local News | Weather | Clock Gallery | Mobile | World Time Database | Link Info

worldtimezone
Worldtimezone

USA Time Map | Canada Time Map | Europe Time Map | Australia Map | Russia | Africa | S. America | C. America | East Asia | West Asia | Middle East | Oceania | Antarctica | World Time Map

Time in World Capitals | North & Central America | Time in Europe | Time in Australia & Oceania | Time in Asia | Time in South America | Time in Africa | Time in Antarctica | Standard List

Home Page | Daylight Saving Time | Time Zone Maps | Sun Clock | World Clock | Call Planner | Interactive Time Map | Abbreviations | DST News

YYYY-MM-DDThh:mm:ss
JJJJ-MM-TTThh:mm:ss (W3)

• "YYYY" / "JJJJ" für "Year" / "Jahr"
• "MM" für "Month" / "Monat"
• "DD" / "TT" für "Day" / "Tag"
• "hh" für "hour" / "Stunde"
• "mm" für "minute" / "Minute"
• "ss" für "second" / "Sekunde"

...
If a date and a time are displayed on the same line, then always write the date in front of the time. If a date and a time value are stored together in a single data field, then ISO 8601 suggests that they should be separated by a latin capital letter T, as in 19951231T235959.
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Das W3C Datum-Zeit-Format

ISO 8601 - Datumsformate und Zeitangaben

ISO 8601 ist ein internationaler Standard der ISO, der Datumsformate und Zeitangaben beschreibt und Empfehlungen für den Gebrauch im internationalen Kontext ausspricht. Der Titel der Norm ist "Data elements and interchange formats - Information interchange - Representation of dates and times", was im deutschen "Datenelemente und Austauschformate; Informationsaustausch; Darstellung von Datum und Uhrzeit" bedeutet.
...

Help with DateTrans function YYYY-MM-DDTHH:MM:SS.sssZ

Weltzeit

Date and Time Formats

"ISO 8601" ist ein internationaler Standard der ISO, der Empfehlungen über numerische Datumsformate und Zeitangaben enthält. Der Titel der Norm ist "Data elements and interchange formats – Information interchange – Representation of dates and times", verdeutscht "Datenelemente und Austauschformate; Informationsaustausch; Darstellung von Datum und Uhrzeit".

Durch die Übernahme in die Europäische Norm EN 28601:1992 galten die Empfehlungen von ISO 8601 über Datums- und Zeitangaben – soweit sie rein numerisch sind, also insbesondere keinen ausgeschriebenen oder abgekürzten Monatsnamen enthalten – gemäß ISO 8601:1988 auch in Deutschland, Österreich und der Schweiz. Im September 2006 löste DIN ISO 8601 diese Normen sowie die älteren DIN 1355 und DIN 1355-1 für den Bereich des deutschen Normenwerkes ab. Außerdem ist die Norm auch in die DIN 5008 (Schreib- und Gestaltungsregeln für die Textverarbeitung) eingeflossen.

Die ISO 8601 wird demnächst durch eine nunmehr zweiteilige Norm, deren Entwürfe bereits bestehen, mit diversen Änderungen ersetzt (Stand April 2017). Die Veröffentlichung wird für das Jahr 2018 erwartet.
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Wenn Datums- und Zeitangaben kombiniert werden, sollte die Datumsangabe vollständig sein, die Zeitangabe kann mit reduzierter Genauigkeit angegeben werden. Die Zeitangabe 23:20:50 Uhr am 12. April 1985 wird wie folgt dargestellt:

Grundformat: 19850412T232050

Erweitertes Format: 1985-04-12T23:20:50

Sofern nicht aus dem Zusammenhang eindeutig klar ist, welche Zeitzone gemeint ist, ist immer anzufügen, welchen Offset zur UTC die angegebene Zeit besitzt

Grundformat: 19850412T232050+0100

Erweitertes Format: 1985-04-12T23:20:50+01:00

Erst damit wird die im Beispiel angegebene Uhrzeit eindeutig als UTC 22:20:50 identifizierbar.

Auch wenn eine Zeitangabe in UTC erfolgt, ist dies durch Anfügen der Zeitzone (+00:00 oder UTC oder Z) kenntlich zu machen.
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Was bedeutet UTC?

Zeitzonen (W3)