Time zone in Dublin
Dublin is on Greenwich Mean Time (GMT, UTC+0) in winter and switches to Irish Standard Time (IST, UTC+1) in summer. Its identifier in the international time zone database is Europe/Dublin: it is what your phone and computer use to show the right time there.
Clock changes in Dublin:
- 2026: forward 1 h on Sunday, March 29, 2026 (1:00 AM becomes 2:00 AM), then back 1 h on Sunday, October 25, 2026 (2:00 AM becomes 1:00 AM).
- 2027: forward 1 h on Sunday, March 28, 2027 (1:00 AM becomes 2:00 AM), then back 1 h on Sunday, October 31, 2027 (2:00 AM becomes 1:00 AM).
Ireland has the same time as London all year. Legally, Irish Standard Time is the summer time (UTC+1), and the winter period runs on GMT.
Dublin follows the European rule: clocks go forward on the last Sunday of March and back on the last Sunday of October, at 01:00 UTC, the same instant everywhere in Europe.
By the sun, noon in Dublin falls at about 12:25 PM in winter and 1:25 PM in summer (on average over the year). The city lies at 6.26° west, and every degree of longitude shifts the sun by 4 minutes. Clock time is close to sun time here. See the sunrise and sunset times in Dublin.
Time difference with major cities
When it is 12:00 PM (noon) in Dublin, it is:
| City | January | July |
|---|---|---|
| New York | 7:00 AM | 7:00 AM |
| Los Angeles | 4:00 AM | 4:00 AM |
| London | 12:00 PM | 12:00 PM |
| Paris | 1:00 PM | 1:00 PM |
| Tokyo | 9:00 PM | 8:00 PM |
| Sydney | 11:00 PM | 9:00 PM |
The gap with Tokyo changes by one hour during the year, because Dublin changes its clocks and this city does not. With Sydney, the gap is not the same in January and July: the clocks change at other times of the year there. With New York and Los Angeles, the gap is the same in January and July but one hour different for 21 days a year, because the clocks do not change on the same dates.
Best time to call Dublin from New York
To reach someone at work in Dublin from New York, the best window is from 8:00 AM to 1:00 PM in New York, which is 1:00 PM to 6:00 PM in Dublin.
For any other city, use the time zone converter or add it to the world clock.