Time in Ireland now

Time zone in Ireland

Ireland uses a single time zone: Greenwich Mean Time (GMT, UTC+0) in winter and Irish Standard Time (IST, UTC+1) in summer. Every clock in the country shows the same time.

In winter its clocks show UTC itself, the time scale every other zone is defined against; Ireland calls it Greenwich Mean Time (GMT).

Dublin lies at 6.2° west, where mean solar time is UTC−0:25 (four minutes per degree of longitude). Standard time runs 25 min ahead of the sun, so on average the sun is highest at about 12:25 PM in winter and an hour later in summer.

Daylight saving time in Ireland

Yes. Ireland moves its clocks forward one hour on the last Sunday of March at 1:00 AM and back on the last Sunday of October at 2:00 AM (local time).

Irish law treats the summer time, Irish Standard Time (UTC+1), as the standard time and the winter GMT as the exception, so tzdata records Ireland with a “negative” daylight saving time in winter. Your clock moves exactly as in the UK either way.

The dates come from EU Directive 2000/84/EC, which makes every member state change at the same instant, 1:00 a.m. GMT. The plan to end the changes has been stalled in the Council since 2019; the daylight saving time page explains it.

All coming change dates are on the Europe/Dublin page.

Clock history of Ireland

The record begins with local mean time (clocks set by the sun, UTC−0:25 in Dublin), which ended on August 2, 1880, when DMT (UTC−0:25) replaced it. Between 1970 and 2024, a daylight saving period began in 54 of the 55 years. The first summer time in the record dates from 1916. The table summarises the clocks of Ireland year by year since 1970, from the tzdata entry Europe/Dublin.

Changes of the winter (standard) offset since 1970: Sunday, October 31, 1971, from UTC+1 to UTC+0.

Rows from 2027 on follow the rules in tzdata 2026f; a government decision would change them in the next release.

Convert Ireland time

Time difference between Ireland and major cities

• In 2027, Ireland is 4 h ahead of New York from March 14 to March 27 and from October 31 to November 6, instead of 5 h ahead of New York as during the rest of the year, because the two places change their clocks on different dates.
• In 2027, Ireland is 7 h ahead of Los Angeles from March 14 to March 27 and from October 31 to November 6, instead of 8 h ahead of Los Angeles as during the rest of the year, because the two places change their clocks on different dates.
• In 2027, Ireland is 10 h behind Sydney from March 28 to April 3 and from October 3 to October 30: the weeks between the two seasons, when one place has changed its clocks and the other has not yet.

Office hours and calls

With JavaScript on, this line shows how Ireland’s office hours overlap yours today.

A 9-to-5 day in Ireland overlaps New York’s for 3 h in January (2:00 PM–5:00 PM Ireland time) and the same in July. At 9:00 AM in Ireland it is 4:00 AM in New York.

A 9-to-5 day in Ireland overlaps New Delhi’s for 2 h 30 min in January (9:00 AM–11:30 AM Ireland time), 3 h 30 min in July. At 9:00 AM in Ireland it is 2:30 PM in New Delhi.

Neighbouring time zones

The nearest large cities on a different clock, with the straight-line distance from Dublin and the difference now.

Same clock as Ireland

These places keep exactly the same time as Ireland all year under the current rules (zones Atlantic/Canary, Atlantic/Faroe, Atlantic/Madeira, Europe/Lisbon, Europe/London).

• LondonGB
• BirminghamGB
• DublinIE
• LisbonPT
• CardiffGB
• BelfastGB
• NottinghamGB
• NorthamptonGB
• AberdeenGB
• CambridgeGB
• SolihullGB
• BedfordGB

Cities in Ireland

• Dublin

Ireland at a glance

• CapitalDublin
• Population5,484,367
• Time zone IDEurope/Dublin
• Standard timeGMT (UTC+0)
• Daylight saving timeIST (UTC+1)
• Calling code+353

More time zones

• What time is it?
• World clock
• Europe/Dublin time zone
• GMT time
• IST time
• Daylight saving time
• Time zones of the world
• Meeting planner
• Time zone converter