The Ireland time difference is 0 hours from London and +5 hours from New York all year round (briefly different for a few weeks in spring and autumn, when the UK and the US change their clocks on different dates).
In practice, when it is noon in London, it is 12:00 in Dublin all year. When it is noon in New York, it is 17:00 in Dublin all year.
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Live local time
Calculated by your browser from the IANA time zone database.
Time in Ireland: key facts
- Time zone: UTC+0 (winter) / UTC+1 (summer), IANA identifier
Europe/Dublin - Difference with London: none, Dublin keeps the same time as London all year
- Difference with New York: +5 h in both Eastern Standard Time and Eastern Daylight Time
- Daylight saving in Ireland: yes, see the dates below
- Next clock changes: UK on Sunday 25 October 2026 (BST to GMT) and Sunday 28 March 2027; US on Sunday 1 November 2026 (EDT to EST) and Sunday 14 March 2027
Time difference between London, New York and Ireland
| Time in London | In Dublin (UK winter, GMT) | In Dublin (UK summer, BST) |
|---|---|---|
| 08:00 | 08:00 | 08:00 |
| 12:00 | 12:00 | 12:00 |
| 18:00 | 18:00 | 18:00 |
| 22:00 | 22:00 | 22:00 |
| Time in New York | In Dublin (US winter, EST) | In Dublin (US summer, EDT) |
|---|---|---|
| 08:00 (8 am) | 13:00 | 13:00 |
| 12:00 (noon) | 17:00 | 17:00 |
| 18:00 (6 pm) | 23:00 | 23:00 |
| 22:00 (10 pm) | 03:00 (next day) | 03:00 (next day) |
The gap stays the same for most of the year because Ireland and the UK change their clocks on the same dates; it differs only for a few weeks in spring and autumn, when the US changes its clocks on a different date.
Clock changes 2026–2027
Ireland observes daylight saving time. Planned dates (local time in Dublin):
- Sunday 25 October 2026: from UTC+1 to UTC+0
- Sunday 28 March 2027: from UTC+0 to UTC+1
- Sunday 31 October 2027: from UTC+1 to UTC+0
Clocks also change in the UK and the US on the following dates:
- UK, Sunday 25 October 2026: BST (UTC+1) to GMT (UTC+0)
- US, Sunday 1 November 2026: EDT (UTC−4) to EST (UTC−5) in New York
- US, Sunday 14 March 2027: EST (UTC−5) to EDT (UTC−4)
- UK, Sunday 28 March 2027: GMT (UTC+0) to BST (UTC+1)
- UK, Sunday 31 October 2027: BST (UTC+1) to GMT (UTC+0)
- US, Sunday 7 November 2027: EDT (UTC−4) to EST (UTC−5)
When to call Ireland from the UK or the US
To reach someone between 09:00 and 20:00 Dublin time, call between 09:00 and 20:00 London time all year. From New York, call between 04:00 and 15:00 all year.
On 15 January 2027, office hours (09:00–17:00) overlap for 8 hours with London and for 3 hours with New York. Always state the time zone in your meeting invitations.
Time difference and jet lag: practical tips
With no gap from London, the trip does not disrupt your rhythm much; the main trap is forgetting to set your watch or calendar to local time for a booked train, tour or meeting. From North America the gap is larger (+5 hours from New York), so a few simple rules help you adjust to local time:
- Set your watch and phone to local time as soon as you board.
- Align meals and bedtime with local time from the first day.
- Plan a light first day, with no important meetings or long drives.
- Get out in daylight when you arrive and avoid long naps.
- If you take medication at fixed times, ask your doctor how to adapt the schedule to the time difference.
Ireland time zone: IANA identifier and history
| Zone | IANA identifier | Standard time on 15 January 2027 | On 15 July 2027 | Abbreviation |
|---|---|---|---|---|
| Dublin | Europe/Dublin | UTC+0 | UTC+1 | GMT |
- Dublin (
Europe/Dublin): daylight saving time applied every year; the tz database records it since at least 1972.
Daylight saving time in Ireland in 2027: clock-change dates
Dates calculated from the tz database rules for Europe/Dublin (Dublin). They coincide with those in the UK: the gap with London therefore stays the same all year.
- Sunday 28 March 2027 at 01:00 (local time): clocks go forward one hour (UTC+0 → UTC+1), at the same moment as the UK clock change.
- Sunday 31 October 2027 at 02:00 (local time): clocks go back one hour (UTC+1 → UTC+0), at the same moment as the UK clock change.
| 2027 period | Dublin vs London | Dublin vs New York |
|---|---|---|
| 1 January – 13 March | 0 h | +5 h |
| 14 – 27 March | 0 h | +4 h |
| 28 March – 30 October | 0 h | +5 h |
| 31 October – 6 November | 0 h | +4 h |
| 7 November – 31 December | 0 h | +5 h |
Sunrise and sunset in Dublin in 2027
Local sunrise and sunset times on the 15th of each month in Dublin (53.34° N, 6.25° W), daylight saving time included. They help you time your exposure to daylight, the main lever for resetting your body clock on arrival.
| 15th of the month | Sunrise | Solar noon | Sunset | Day length | Sunrise / sunset in London time |
|---|---|---|---|---|---|
| January | 08:32 | 12:34 | 16:36 | 8 h 04 | 08:32 / 16:36 |
| February | 07:43 | 12:39 | 17:35 | 9 h 51 | 07:43 / 17:35 |
| March | 06:40 | 12:34 | 18:28 | 11 h 48 | 06:40 / 18:28 |
| April | 06:26 | 13:25 | 20:24 | 13 h 59 | 06:26 / 20:24 |
| May | 05:25 | 13:21 | 21:17 | 15 h 52 | 05:25 / 21:17 |
| June | 04:56 | 13:25 | 21:54 | 16 h 58 | 04:56 / 21:54 |
| July | 05:16 | 13:31 | 21:46 | 16 h 30 | 05:16 / 21:46 |
| August | 06:05 | 13:30 | 20:54 | 14 h 49 | 06:05 / 20:54 |
| September | 06:58 | 13:20 | 19:42 | 12 h 44 | 06:58 / 19:42 |
| October | 07:52 | 13:11 | 18:30 | 10 h 39 | 07:52 / 18:30 |
| November | 07:50 | 12:10 | 16:29 | 8 h 39 | 07:50 / 16:29 |
| December | 08:34 | 12:20 | 16:06 | 7 h 32 | 08:34 / 16:06 |
The longest day in the table is 15 June (16 h 58 between 04:56 and 21:54), the shortest 15 December (7 h 32).
Jet lag: how flight direction affects you in Ireland
- From the UK: the gap is 0 h all year, so there is no real jet lag. Any tiredness comes from the journey, not from the change of time zone.
- From New York (flying east): you « lose » 5 hours all year; your arrival day is shortened and you need to go to bed earlier than your body clock expects.
- Your usual night at home (23:00 – 07:00) corresponds to 04:00 – 12:00 in Dublin from New York during EST (same during EDT): this is when your body will want to sleep for the first few days.
- Daylight on arrival: in Dublin, the sun rises around 08:32 and sets around 16:36 in mid-January, and around 05:16 and 21:46 in mid-July (table above). After flying east, seek morning light and avoid it late in the day; this is the standard advice for shifting your body clock.
Plan your trip to Ireland
- Our complete Ireland travel guide: highlights, itineraries and budget
- Best time to visit Ireland: month-by-month weather and the best season
- Time differences around the world: every country in our guides
Frequently asked questions
What is the time difference between Ireland and the UK or the US?
Ireland is at the same time as London all year. It is 5 hours ahead of New York all year.
What time is it in Ireland when it is noon in London or New York?
In Dublin, noon in London is 12:00 all year; noon in New York is 17:00 all year.
Does Ireland have daylight saving time?
Yes. Next changes (local time): Sunday 25 October 2026: from UTC+1 to UTC+0; Sunday 28 March 2027: from UTC+0 to UTC+1.
When should I call Ireland from the UK or the US?
To reach someone between 09:00 and 20:00 local time, call between 09:00 and 20:00 London time all year, or between 04:00 and 15:00 New York time all year.
What is the IANA time zone for Ireland?
Dublin: Europe/Dublin.
What time does the sun rise in Dublin?
Around 08:32 on 15 January 2027 and around 05:16 on 15 July 2027 (local time); sunset around 16:36 and 21:46. Destination de Voyage calculation (NOAA algorithm).
Our sources
- Sunrise and sunset: algorithm from the NOAA Solar Calculator (Global Monitoring Laboratory), applied to the capital’s coordinates (Natural Earth, Wikidata or Wikipedia): Destination de Voyage calculation.
- IANA Time Zone Database (tz database), version 2026b, consulted on 13 October 2026: time zones, rules and clock-change dates. Future dates may be changed by local authorities.
- UK clock changes: GOV.UK, When do the clocks change? (UK summer time from the last Sunday in March to the last Sunday in October).
- US daylight saving time: NIST, Daylight Saving Time (from the second Sunday in March to the first Sunday in November).
- Live time: calculated by your browser (Intl API), which relies on the same IANA database.
- Our methodology
Updated November 2026.
