Time in the Republic of Ireland
 |
Ireland uses Western European Time (UTC) in the winter period, and Irish Standard Time or Western European Summer Time (UTC+1) in the summer months.
In Ireland, the Standard Time (Amendment) Act, 1971 legally establishes Western European Time as a winter time period. Ireland reverts to Irish Standard Time during the summer months. This is the reverse of the practice of most states in the EU, but provides the same end results.
History
The Standard Time Act 1968 [1] stipulated that standard time is UTC+1 (CET) and from 1968 clocks were not turned back one hour during winter. The subsequent Standard Time (Amendment) Act, 1971 [2] effectively reversed this, and from 1971 returned winter time to UTC+0 (Western European Time), it did not however change the names of the Irish summer time zone, which are still, officially, Irish Standard Time (IST) and Am Caighdeánach na hÉireann (ACÉ).