Time in the Danish Realm

Last updated

Time zones of the Danish realm and North Atlantic as of mid-2024 Time zones of the North Atlantic mid-2024.png
Time zones of the Danish realm and North Atlantic as of mid-2024
Time in Europe: Light Blue Western European Time / Greenwich Mean Time (UTC) Blue Western European Time / Greenwich Mean Time (UTC) Western European Summer Time / British Summer Time / Irish Standard Time (UTC+1) Red Central European Time (UTC+1) Central European Summer Time (UTC+2) Yellow Eastern European Time / Kaliningrad Time (UTC+2) Ochre Eastern European Time (UTC+2) Eastern European Summer Time (UTC+3) Green Moscow Time / Turkey Time (UTC+3) Turquoise Armenia Time / Azerbaijan Time / Georgia Time / Samara Time (UTC+4) #### Pale colours: Standard time observed all year ### Dark colours: Summer time observed Time zones of Europe, incl. Transcaucasia.svg
Time in Europe:
Light Blue Western European Time / Greenwich Mean Time (UTC)
Blue Western European Time / Greenwich Mean Time (UTC)
Western European Summer Time / British Summer Time / Irish Standard Time (UTC+1)
Red Central European Time (UTC+1)
Central European Summer Time (UTC+2)
Yellow Eastern European Time / Kaliningrad Time (UTC+2)
Ochre Eastern European Time (UTC+2)
Eastern European Summer Time (UTC+3)
Green Moscow Time / Turkey Time (UTC+3)
Turquoise Armenia Time / Azerbaijan Time / Georgia Time / Samara Time (UTC+4)
▉▉▉▉ Pale colours: Standard time observed all year
▉▉▉ Dark colours: Summer time observed

Denmark , including its dependencies of Faroe Islands and Greenland, uses six time zones.

Contents

AreaStandard time Daylight time tz database
Denmark UTC+01:00 UTC+02:00 EU transition dates Europe/Copenhagen
Faroe Islands UTC±00:00 UTC+01:00 EU transition dates Atlantic/Faroe
Danmarkshavn UTC±00:00 (no DST) America/Danmarkshavn
Ittoqqortoormiit UTC-02:00 UTC-01:00 EU transition dates America/Scoresbysund
Western Greenland America/Godthab
Pituffik Space Base UTC-04:00 UTC-03:00 U.S. transition dates America/Thule
The current time in Denmark is: 16:49, 27 August 2024 CEST [refresh]
The current time in Greenland is: 12:49, 27 August 2024 WGST [refresh]
These may be outdated if caching occurs

Time zones

Central European Time

UTC+01:00 as standard time, and UTC+02:00 as daylight saving time, with transition dates according to the European Union rules.

The UTC+01:00 centerline (15°E) goes through Bornholm, approximately 2 kilometers from Gudhjem, in the far eastern Denmark, while Copenhagen at 12°34′E corresponds to UTC+0:50, and the west coast at 8°6′E corresponds to UTC+0:32.
An 1893 law set the de jure standard time of Denmark as the mean solar time 15°E of Greenwich, for all of Denmark, with an exception for the Faroe Islands, effective at 1 January 1894. [2] This linked the standard time in Denmark to Earth's rotation, and clocks in Denmark were at 12:00, when the sun is directly above the 15° Eastern meridian. As Earth's rotation is not completely regular, the time could be offset by up to 0.9 seconds in either direction, compared to UTC+1, requiring a leap second to be added to remedy the issue. On 14 March 2023, the Folketing adopted a proposal to set the de jure standard time of Denmark as UTC+1, with exceptions made for Greenland and the Faroe Islands. The proposal became effective law on 26 March 2023 at 2:00, superseding the 1893 law. [3] [4]

Western European Time

UTC±00:00 as standard time, and UTC+01:00 as daylight saving time.

The island of Mykines is actually located at 7°36′W longitude and thus at UTC-00:31 (closer to UTC-01:00 than UTC), however Mykines uses the same time zone as the rest of the Faroe Islands.

Greenwich Mean Time

UTC±00:00 year around, no daylight saving time

The area uses same time as Iceland (WET), since it is generally supplied from Iceland. This is however unofficial. In the summer the time is the same as for East Greenland time.

West Greenland Time

UTC-02:00 as standard time, and UTC-01:00 as daylight saving time.

Atlantic Time

UTC-04:00 as standard time, and UTC-03:00 as daylight saving time, with transition dates according to the United States rules.

Daylight saving time

All of Greenland uses Daylight Saving Time, except for the northeast coast. The transition dates are according to the European Union rules, except for the Pituffik Space Base, which uses United States transition dates and for which the following description does not apply.

DST starts at 01:00 UTC on the last Sunday in March and ends same time on the last Sunday in October each year in all affected areas.

That means that in Denmark proper, the transition is at 02:00 Local Standard Time (03:00 Daylight Saving Time) and in the Faroe Islands one hour earlier. In most of Greenland, the transition takes place at 23:00 Local Standard Time on the day before (00:00 Daylight Saving Time).

History

The first time a common time was used in Denmark, was in 1890, when Copenhagen local time was used as railway time. This was GMT+0:50:20 from Greenwich. In 1890 this time was introduced as a standard time for Denmark. In 1893, Denmark adopted the "Act on the Determination of Time", to connect to the international time zones, using Greenwich plus one hour, which set the standard time in Denmark as 12:00 when the sun is directly above 15°E, starting from 1 January 1894. [9] This is the local time of eastern Bornholm, leaving 99.5% of the country west of the time meridian (15°E), which has triggered some sarcastic comments (changing from Copenhagen time to Gudhjem time). However all of the country is located east of Greenwich +00:30 (7.5°E).

Daylight saving time was used in the years 1916, 1940, 1945-1948 and is used from 1980. [1]

The Faroe Islands introduced Greenwich Mean Time in 1908, and Iceland (then a Danish area) introduced GMT-01:00 at the same time (changed to GMT, permanent daylight saving time, in 1968). West Greenland introduced GMT-03:00 in 1916. Daylight saving time was introduced in the Faroe Islands in 1981. [1]

On 25 January 2023, Transport Minister, Thomas Danielsen made a proposal to overrule the 1893 law, with an act to set Danish standard time as UTC+1, with exceptions for Greenland and the Faroe Islands. [10] [11] On 14 March 2023, the Folketing adopted the proposal with unanimous consent, and the proposal came in effect as law on 26 March 2023, at 2:00. [12] [13] Greenland moved the time zone forward one hour simultaneously (on 25 March 2023 local time), after that using UTC-02:00 as the standard time. [14]

IANA time zone database

Data for Denmark directly from zone.tab of the IANA time zone database. Columns marked with * are the columns from zone.tab itself.

c.c.*Coordinates*TZ*Comments* UTC offset UTC DST offset
DK +5540+01235 Europe/Copenhagen +01:00+02:00
FO +6201−00646 Atlantic/Faroe +00:00+01:00
GL +7646−01840 America/Danmarkshavn National Park (east coast)+00:00+00:00
GL +7029−02158 America/Scoresbysund Scoresbysund/Ittoqqortoormiit−02:00−01:00
GL America/Godthab −02:00−01:00
GL +7634−06847 America/Thule Thule/Pituffik−04:00−03:00

Related Research Articles

<span class="mw-page-title-main">Time zone</span> Area that observes a uniform standard time

A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.

<span class="mw-page-title-main">Western European Summer Time</span> Time zone (UTC+01:00)

Western European Summer Time is a summer daylight saving time scheme, 1 hour ahead of Greenwich Mean Time and Coordinated Universal Time. It is used in:

<span class="mw-page-title-main">Japan Standard Time</span> Standard time zone in Japan

Japan Standard Time, or Japan Central Standard Time, is the standard time zone in Japan, 9 hours ahead of UTC (UTC+09:00). Japan does not observe daylight saving time, though its introduction has been debated on several occasions. During World War II, the time zone was often referred to as Tokyo Standard Time.

<span class="mw-page-title-main">Central European Time</span> Standard time (UTC+01:00)

Central European Time (CET) is a standard time of Central, and parts of Western Europe, which is one hour ahead of Coordinated Universal Time (UTC). The time offset from UTC can be written as UTC+01:00. It is used in most parts of Europe and in a few North African countries. CET is also known as Middle European Time and by colloquial names such as Amsterdam Time, Berlin Time, Brussels Time, Budapest Time, Madrid Time, Paris Time, Rome Time, Prague time, Warsaw Time or Romance Standard Time (RST).

<span class="mw-page-title-main">Western European Time</span> Time zone in Europe: UTC±00:00

Western European Time is a time zone covering parts of western Europe and consists of countries using UTC±00:00. It is one of the three standard time zones in the European Union along with Central European Time and Eastern European Time.

<span class="mw-page-title-main">Time in the United States</span> Time zones in the U.S.

In the United States, time is divided into nine standard time zones covering the states, territories and other US possessions, with most of the country observing daylight saving time (DST) for approximately the spring, summer, and fall months. The time zone boundaries and DST observance are regulated by the Department of Transportation, but no single map of those existed until the agency announced intentions to make one in September 2022. Official and highly precise timekeeping services (clocks) are provided by two federal agencies: the National Institute of Standards and Technology (NIST) ; and the United States Naval Observatory (USNO). The clocks run by these services are kept synchronized with each other as well as with those of other international timekeeping organizations.

<span class="mw-page-title-main">Summer time in Europe</span> Variation of standard clock time

Summer time in Europe is the variation of standard clock time that is applied in most European countries in the period between spring and autumn, during which clocks are advanced by one hour from the time observed in the rest of the year, with a view to making the most efficient use of seasonal daylight. It corresponds to the notion and practice of daylight saving time (DST) to be found in some other parts of the world.

Time in New Zealand is divided by law into two standard time zones. The main islands use New Zealand Standard Time (NZST), 12 hours in advance of Coordinated Universal Time (UTC) / military M (Mike), while the outlying Chatham Islands use Chatham Standard Time (CHAST), 12 hours 45 minutes in advance of UTC / military M^ (Mike-Three).

<span class="mw-page-title-main">Atlantic Time Zone</span> Time zone (UTC−04:00)

The Atlantic Time Zone is a geographical region that keeps standard time—called Atlantic Standard Time (AST)—by subtracting four hours from Coordinated Universal Time (UTC), resulting in UTC−04:00. AST is observed in parts of North America and some Caribbean islands. During part of the year, some portions of the zone observe daylight saving time, referred to as Atlantic Daylight Time (ADT), by moving their clocks forward one hour to UTC−03:00. The clock time in this zone is based on the mean solar time of the 60th meridian west of the Greenwich Observatory.

<span class="mw-page-title-main">UTC−02:00</span> Identifier for a time offset from UTC of −2

UTC−02:00 is an identifier for a time offset from UTC of −02:00.

<span class="mw-page-title-main">UTC−01:00</span> Time in Cape Verde, the Azores and east Greenland

UTC−01:00 is an identifier for a time offset from UTC of −01:00.

<span class="mw-page-title-main">Time in Australia</span>

Australia uses three main time zones: Australian Eastern Standard Time, Australian Central Standard Time and Australian Western Standard Time.

<span class="mw-page-title-main">Time in Canada</span>

Canada is divided into six time zones. Most areas of the country's provinces and territories operate on standard time from the first Sunday in November to the second Sunday in March and daylight saving time the rest of the year.

<span class="mw-page-title-main">Time in the United Kingdom</span> United Kingdom legislation

The United Kingdom uses Greenwich Mean Time and British Summer Time (UTC+01:00).

Time in Chile is divided into three time zones. Most of Continental Chile uses the time offset UTC−04:00 in winter time and UTC−03:00 in summer time, while the Magallanes and Chilean Antarctica region uses the time offset UTC−03:00 the whole year. Additionally, Easter Island uses the time offset UTC−06:00 in winter time and UTC−05:00 in summer time.

<span class="mw-page-title-main">UTC+00:00</span> Identifier for the UTC +0 offset

UTC+00:00 is an identifier for a time offset from UTC of +00:00. This time zone is the basis of Coordinated Universal Time (UTC) and all other time zones are based on it. In ISO 8601, an example of the associated time would be written as 2069-01-01T12:12:34+00:00. It is also known by the following geographical or historical names:

<span class="mw-page-title-main">Time in the Republic of Ireland</span>

Ireland uses Irish Standard Time in the summer months and Greenwich Mean Time in the winter period.

<span class="mw-page-title-main">Daylight saving time by country</span>

Daylight saving time (DST), also known as summer time, is the practice of advancing clocks during part of the year, typically by one hour around spring and summer, so that daylight ends at a later time of the day. As of 2024, DST is observed in most of Europe, most of North America and parts of Africa and Asia around the Northern Hemisphere summer, and in parts of South America and Oceania around the Southern Hemisphere summer. It was also formerly observed in other areas.

Time in the Kingdom of the Netherlands is denoted by Central European Time during the winter as standard time in the Netherlands, which is one hour ahead of coordinated universal time (UTC+01:00), and Central European Summer Time (CEST) during the summer as daylight saving time, which is two hours ahead of coordinated universal time (UTC+02:00). The Caribbean Netherlands – which consist of the islands of Bonaire, Sint Eustatius and Saba – all observe Atlantic Standard Time (AST) year-round, which is four hours behind coordinated universal time (UTC−04:00).

<span class="mw-page-title-main">Time in Finland</span>

Finland uses Eastern European Time (EET) during the winter as standard time and Eastern European Summer Time (EEST) during the summer as daylight saving time. EET is two hours ahead of coordinated universal time (UTC+02:00) and EEST is three hours ahead of coordinated universal time (UTC+03:00). Finland adopted EET on 30 April 1921, and has observed daylight saving time in its current alignment since 1981 by advancing the clock forward one hour at 03:00 EET on the last Sunday in March and back at 04:00 EET on the last Sunday in October, doing so an hour earlier for the first two years.

References

  1. 1 2 3 4 5 6 7 "IANA — Time Zone Database". www.iana.org. Archived from the original on 2021-03-08. Retrieved 2020-06-17.
  2. ↑ "Act on the Determination of Time". 29 March 1893. Archived from the original on 26 March 2023. Retrieved 27 March 2023.
  3. ↑ "L 19 Proposal for an Act on Danish Standard Time". Thomas Danielsen. 14 March 2023. Archived from the original on 16 March 2023. Retrieved 16 March 2023.
  4. ↑ "Proposal to Danish Standard Act" (PDF). Thomas Danielsen. 14 March 2023. Archived (PDF) from the original on 16 March 2023. Retrieved 16 March 2023.
  5. ↑ On Time in Greenland Archived 2023-03-02 at the Wayback Machine Time in Greenland
  6. ↑ On airgreenland.com Archived 2016-04-22 at the Wayback Machine search flights Ilulissat – Kangerlussuaq
  7. ↑ On airgreenland.com Archived 2016-04-22 at the Wayback Machine search flights Nuuk – Kulusuk and Kulusuk – Tasiilaq
  8. ↑ "Time Zone Clarity in Greenland". www.timeanddate.com. 2 November 2023.
  9. ↑ "Act on the Determination of Time". 29 March 1893. Archived from the original on 26 March 2023. Retrieved 27 March 2023.
  10. ↑ "L 19 Proposal for an Act on Danish Standard Time". Thomas Danielsen. 25 January 2023. Archived from the original on 27 March 2023. Retrieved 27 March 2023.
  11. ↑ "Proposal to Danish Standard Act" (PDF). Thomas Danielsen. 25 January 2023. Archived (PDF) from the original on 26 March 2023. Retrieved 27 March 2023.
  12. ↑ "L 19 Proposal for an Act on Danish Standard Time". Thomas Danielsen. 14 March 2023. Archived from the original on 27 March 2023. Retrieved 27 March 2023.
  13. ↑ "L 19 Proposal for an Act on Danish Standard Time". Thomas Danielsen. 14 March 2023. Archived from the original on 29 March 2023. Retrieved 27 March 2023.
  14. ↑ "Greenland Changes Time Zone". Time and Date AS. 2022-11-25. Archived from the original on 2022-12-18. Retrieved 2022-12-18.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.