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You asked:

When does daylight savings time start in the United Kingdom?

the United Kingdom

March 25th 2012, 01:00

wikipedia

When do the clocks go forward (the start of daylight savings time) in the United Kingdom of Great Britain and Northern Ireland?

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Analyse this question

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Facts

Show reasoning

I followed this chain of reasoning:

By calculation (generator: ["now@trueknowledge.com"]) I know that:
The current time is February 12th 2012, 17:36:47

I know from locally stored knowledge that:
the United Kingdom is in the British time region ([fact: ["105703366@trueknowledge.com"]])

By calculation (generator: ["geographically_located_within_or_equal_to@trueknowledge.com"]) I know that:
the United Kingdom is geographically located within or is equal to the British time region

I know from locally stored knowledge that:
the British time region is a time zone area ([fact: ["104823689@trueknowledge.com"]])

By calculation (generator: ["time_zone_area_for@trueknowledge.com"]) I know that:
the British time region is the time zone area for the United Kingdom

I know from locally stored knowledge that:
Fact 1: British Summer Time is the time zone for the British time region ([fact: ["104823702@trueknowledge.com"]])

Fact 1 is true for March 25th 2012, 01:00 - October 28th 2012, 01:00 ([fact: ["847689124@trueknowledge.com"]])

daylight saving applies to British Summer Time ([fact: ["97193985@trueknowledge.com"]])

By calculation (generator: ["start_daylight_saving_time_in7@trueknowledge.com"]) I know that:
March 25th 2012, 01:00 is the start of daylight saving time in the United Kingdom

By calculation (generator: ["timepoint_sum@trueknowledge.com"]) I know that:
March 12th 2013, 17:36:47 is the timepoint sum of February 12th 2012, 17:36:47 and 1 year, 1 month and 0 days

By calculation (generator: ["strictequal1@trueknowledge.com"]) I know that:
February 12th 2012, 17:36:47 - March 12th 2013, 17:36:47 is strictly equal to February 12th 2012, 17:36:47 - March 12th 2013, 17:36:47

By calculation (generator: ["pinstance@trueknowledge.com"]) I know that:
Fact 2: March 25th 2012, 01:00 is a point in time

Fact 2 is true for all time

Fact 2: February 12th 2012, 17:36:47 - March 12th 2013, 17:36:47 is a period of time

Fact 2 is true for all time

By calculation (generator: ["timepointintimeperiod@trueknowledge.com"]) I know that:
March 25th 2012, 01:00 is a timepoint within February 12th 2012, 17:36:47 - March 12th 2013, 17:36:47

I used the following facts to provide this answer:

the United Kingdom is or has been in the British time region

agree disagree edit

the British time region is a time zone area

agree disagree edit

British Summer Time has been the time zone for the British time region between March 25th 2012, 01:00 and October 28th 2012, 01:00

agree disagree edit

British Summer Time is daylight saving

agree disagree edit

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External web pages (using standard web search):

Daylight Saving Time - Saving Time, Saving Energy

Spring Forward...Fall Back! A brief history of Daylight Saving Time in the United States

http://www.energy.ca.gov/daylightsaving.html

Daylight saving time by country - Wikipedia, the free encyclopedia

Daylight saving time around the world, showing usage and a short history by location in alphabetic order, grouped by continent. Most areas of North America and Europe observe ...

http://en.wikipedia.org/wiki/Daylight_saving_time_around_the_world

When Does Daylight Saving Time Begin and End?

Information on the current implementation and history of daylight time in the U.S.

http://aa.usno.navy.mil/faq/docs/daylight_time.php

Daylight saving time - Wikipedia, the free encyclopedia

Daylight saving time (DST)—also summer time in several countries including in British English and European official terminology (see Terminology)—is the practice of ...

http://en.wikipedia.org/wiki/Daylight_saving_time

Daylight Saving Time - Overview of Daylight Saving Time

Everything you ever wanted to know about the history of Daylight Saving Time. Find out why and when we spring forward and fall back for Daylight Saving Time!

http://geography.about.com/cs/daylightsavings/a/dst.htm

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