What Time is it in Ireland?

An Overview of Irish Time Zones
Ireland has two time zones — Eastern European Time (EET) and Greenwich Mean Time (GMT). Eastern European Time is used in Ireland during winter months and is referred to as Irish Standard Time (IST). Greenwich Mean Time is used during summer months and is referred to as Irish Daylight Saving Time (IDST). Ireland is the only day in Europe that implements the GMT (GMT+1) during summer.

What the Difference is between Connacht and Munster?
Part of Ireland, in particular the counties of Connacht and Munster, operate on their own unique time zones, known as Connacht Time and Munster Time. Connacht Time is 30 minutes ahead of IST and is used by counties such as Mayo, Galway and Donegal. Munster Time is 15 minutes ahead of IST and is used by counties such as Cork and Kerry.

The Challenge of Deciding When Daylight Saving Starts and Ends
Every year in March and October, the Irish government has to make the difficult decision of when to implement the Daylight Saving Time (DST). This decision can be controversial as some people may disagree about when DST should start and end. The current policy is that DST starts on the last Sunday in March and ends on the last Sunday in October each year.

In conclusion, Ireland is split into two main time zones — Eastern European Time and Greenwich Mean Time. Connacht Time and Munster Time are unique time zones only used in counties Ireland. The Irish government has to decide annually when Daylight Saving Time should start and end.