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Time gap

Time differences

Time difference between London and Dublin

Good time for both on a weekday: 9:00–17:00 in London = 9:00–17:00 in Dublin.

 

 

 

  • Everyone at work
  • Work hours
  • Awake
  • Night
  • Weekend

Tap any column to see that moment in every city.

Different hours for each city
  • 0 hoursno difference
  • UTC / UTC+1London, January / July
  • UTC / UTC+1Dublin, January / July
  • 8 hoursshared 9-to-5 time

How the gap moves through the year

The gap never changes: Dublin and London show the same clock time on every day of the year, because both cities change their clocks on the same moments.

London moves its clocks forward one hour on the last Sunday in March at 1:00 am local time and back on the last Sunday in October at 2:00 am, switching between Greenwich Mean Time (UTC) and British Summer Time (UTC+1).

Dublin moves its clocks forward one hour on the last Sunday in March at 1:00 am local time and back on the last Sunday in October at 2:00 am, switching between Greenwich Mean Time (UTC) and Irish Standard Time (UTC+1).

Next clock change for this pair, as of when this page was built (2026-10-20): London falls back on Sun 25 October 2026.

Everything on this page also holds if you swap London for Birmingham, Dublin, Glasgow, Manchester or Lisbon, or Dublin for London, Birmingham, Glasgow, Manchester or Lisbon — those cities follow exactly the same clock all year.

Working hours that overlap

In January, a 9-to-5 day in both cities shares 8 hours: 9:00 am–5:00 pm in London, which is 9:00 am–5:00 pm in Dublin.

July gives exactly the same window.

Across the week

At 9:00 on a Monday morning in London, it is 9:00 am on Monday in Dublin.

Daylight, distance and night calls

London and Dublin are about 462 km (287 miles) apart and 6° of longitude apart, which by the sun alone would be 30 minutes.

London's winter clock sits within 2 minutes of the sun, and Dublin's runs 25 minutes ahead of the sun.

In mid-January the sun is up in London from about 7:59 am to 4:19 pm, and the sun is up in Dublin from about 8:32 am to 4:35 pm; both cities are in daylight at the same time for about 7 hours 45 minutes.

In mid-July the sun is up in London from about 5:00 am to 9:12 pm, and the sun is up in Dublin from about 5:15 am to 9:46 pm; both cities are in daylight at the same time for about 16 hours.

Hour-by-hour table and common mistakes — 2 more sections
Each hour in London and the same moment in Dublin, on a Wednesday in January and in July. Shaded: inside 9-to-5 in both.
LondonDublin, JanuaryDublin, July
12:00 am12:00 am12:00 am
1:00 am1:00 am1:00 am
2:00 am2:00 am2:00 am
3:00 am3:00 am3:00 am
4:00 am4:00 am4:00 am
5:00 am5:00 am5:00 am
6:00 am6:00 am6:00 am
7:00 am7:00 am7:00 am
8:00 am8:00 am8:00 am
9:00 am9:00 am9:00 am
10:00 am10:00 am10:00 am
11:00 am11:00 am11:00 am
12:00 pm12:00 pm12:00 pm
1:00 pm1:00 pm1:00 pm
2:00 pm2:00 pm2:00 pm
3:00 pm3:00 pm3:00 pm
4:00 pm4:00 pm4:00 pm
5:00 pm5:00 pm5:00 pm
6:00 pm6:00 pm6:00 pm
7:00 pm7:00 pm7:00 pm
8:00 pm8:00 pm8:00 pm
9:00 pm9:00 pm9:00 pm
10:00 pm10:00 pm10:00 pm
11:00 pm11:00 pm11:00 pm

Common mistakes with London and Dublin

  • Writing “GMT” all year for London. In summer the zone is British Summer Time; calendar apps handle it, but a typed time in an email can be read the wrong way.

Questions

Is Dublin ahead of London?
No — they show the same clock time all year (UTC).
What is a good time for a meeting between London and Dublin?
With 9-to-5 days in both cities, 9:00 am–5:00 pm London time is inside working hours in both, which gives 8 hours.
Does the time difference between London and Dublin change?
No. The gap never changes: Dublin and London show the same clock time on every day of the year, because both cities change their clocks on the same moments.

Related time differences

London time zone · Plan with more cities

City names, coordinates and time zone assignments: GeoNames, licensed under CC BY 4.0 (selection and renaming of some cities by this site). Clock times are computed in your browser from the IANA time zone database. Sources and limits.