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UTC−00:25:21

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UTC−00:25:21 is an identifier for a time offset from UTC of −00:25:21, i.e. twenty-five minutes and twenty-one seconds behind Greenwich Mean Time. This time, known as Dublin Mean Time, is local mean time at Dunsink Observatory and was official time in Ireland between 1880 and 1916.

Key facts

Time zone.UTC
yes
Time zone.image
Dunsink observatory.jpg
Time zone.caption
Dunsink Observatory

via Wikipedia infobox

Wikidata facts

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UTC timezone offset
-0.4225
Sources (1)

via Wikidata · CC0

~1 min read

Encyclopedic overview

4 sections
Contents
  • History
  • See also
  • References
  • External links

UTC−00:25:21 is an identifier for a time offset from UTC of −00:25:21, i.e. twenty-five minutes and twenty-one seconds behind Greenwich Mean Time. This time, known as Dublin Mean Time, is local mean time at Dunsink Observatory and was official time in Ireland between 1880 and 1916.

==History== Dublin Mean Time was introduced by the Statutes (Definition of Time) Act, 1880, which also defined Greenwich Mean Time (GMT) as legal time in Great Britain. This act replaced local mean time, which had been the legal time since Curtis v. March in 1858, throughout the United Kingdom of Great Britain and Ireland.

Excerpted from Wikipedia’s “UTC−00:25:21” article, available under the CC BY-SA 4.0 licence.