Time in the Republic of Ireland
Ireland uses Irish Standard Time in the summer months and Greenwich Mean Time in the winter period. In Ireland, the Standard Time Act 1968 established that the time for general purposes in the State shall be one hour in advance of Greenwich mean time throughout the year; this act was amended by the Standard Time Act 1971, which established Greenwich Mean Time as a winter time period. Ireland therefore operates one hour behind standard time during the winter period, reverts to standard time in the summer months; this is defined in contrast to the other states in the European Union, which operate one hour ahead of standard time during the summer period, but produces the same end result. The instant of transition to and from daylight saving time is synchronised across Europe. In Ireland, winter time begins at 02:00 IST on the last Sunday in October, ends at 01:00 GMT on the last Sunday in March; the following table lists recent past and near-future starting and ending dates of Irish Standard Time or Irish Summer Time: Before 1880, the legal time at any place in the United Kingdom of Great Britain and Ireland was defined as local mean time, as held by the appeal in the 1858 court case Curtis v. March.
The Statutes Act, 1880 defined Dublin Mean Time as the legal time for Ireland. This was the local mean time at Dunsink Observatory outside Dublin, was about 25 minutes 21 seconds behind Greenwich Mean Time, defined by the same act to be the legal time for Great Britain. After the Easter Rising, the time difference between Ireland and Britain was found inconvenient for telegraphic communication and the Time Act, 1916 provided that Irish time would be the same as British time, from 2:00 am Dublin Mean Time on Sunday 1 October 1916. Summer time had been introduced in May 1916 across the United Kingdom as a temporary efficiency measure for the First World War, the changeover from Dublin time to Greenwich time was simultaneous with the changeover from summer time to winter time. John Dillon opposed the first reading of the Time Bill for having been introduced without consultation of the Irish Parliamentary Party. T. M. Healy opposed the second reading on the basis that "while the Daylight Saving Bill added to the length of your daylight, this Bill adds to the length of your darkness".
After the Irish Free State became independent in 1922, subsequent developments tended to mirror those in the United Kingdom. This avoided having different times on either side of the border with Northern Ireland. Summer time was provided on a one-off basis by acts in 1923 and 1924, on an ongoing basis by the Summer Time Act, 1925; the 1925 act provided a default summer time period. Double summer time was considered but not introduced during the Emergency of World War II. From 1968 standard time was observed all year round, with no winter time change; this was an experiment in the run-up to Ireland's 1973 accession to the EEC, was undone in 1971. In those years, time in Ireland was the same as in the six EEC countries, except in the summer in Italy, which switched to Central European Summer Time. One artefact of the 1968 legislation is that "standard time" refers to summer time. From the 1980s, the dates of switch between winter and summer time have been synchronised across the European Union; the statutory instruments that have been issued under the Standard Time Acts are listed below, in format year/SI-number, linking to the Irish Statute Database text of the SI.
Except where stated, those issued up to 1967 were called "Summer Time Order <year>", while those issued from 1981 are "Winter Time Order <year>". 1926/, 1947/71, 1948/128, 1949/23, 1950/41, 1951/27, 1952/73, 1961/11, 1961/232, 1962/182, 1963/167, 1964/257, 1967/198, 1981/67, 1982/212, 1986/45, 1988/264, 1990/52, 1992/371, 1994/395, 1997/484, 2001/506 Possible adjustments to the Irish practice were discussed by the Oireachtas joint committee on Justice and Equality in November 2011, but the government stated it had no plans to change. In November 2012, Tommy Broughan introduced a private member's bill to permit a three-year trial of advancing time by one hour, to CET in winter and CEST in summer. Debate on the bill's second stage was adjourned on 5 July 2013, when Alan Shatter, the Minister for Justice and Equality, agreed to refer the matter to the joint committee for review, suggested that it consult with the British parliament and devolved assemblies. In July 2014, the joint committee issued an invitation for submissions on the bill.
On 8 February 2018, the European Parliament voted to ask the European Commission to re-evaluate the principle of Summer Time in Europe. After a web survey showing high support for not switching clocks twice annually, on 12 September 2018 the European Commission decided to propose that an end be put to seasonal clock changes In order for this to be valid, the European Union legislative procedure must be followed that the Council of the European Union and the European Parliament must both approve the proposal; the United Kingdom is due to have left the EU by and, if the UK does not follow the reform and contin