What is the time difference between Dublin and London?

London is 0 minutes behind Dublin. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call London from Dublin?

Between 09:00–18:00 in Dublin, which is 09:00–18:00 in London. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Dublin observe daylight saving time?

Yes. Dublin runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.

Does London observe daylight saving time?

Yes. London runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.

If it is midday in Dublin, what time is it in London?

It is 12:00 in London, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Dublin and London use?

Dublin uses Europe/Dublin, currently UTC+1 (IST), and London uses Europe/London, currently UTC+1 (BST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Dublin time to London time

London is 0 minutes behind Dublin right now, so midday in Dublin lands in the afternoon in London.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

Every hour of a day in Dublin, and what the clock reads in London at that same moment.

Dublin	London
00:00	00:00
01:00	01:00
02:00	02:00
03:00	03:00
04:00	04:00
05:00	05:00
06:00	06:00
07:00	07:00
08:00	08:00
09:00	09:00
10:00	10:00
11:00	11:00
12:00	12:00
13:00	13:00
14:00	14:00
15:00	15:00
16:00	16:00
17:00	17:00
18:00	18:00
19:00	19:00
20:00	20:00
21:00	21:00
22:00	22:00
23:00	23:00

Daylight saving time

Both cities change their clocks, but not necessarily on the same date — which is why the difference between them shifts for a few weeks each year.

Dublin

Observes daylight saving time

Standard: UTC+0
Daylight: UTC+1
Next change: 2026-10-25 −60m

London

Observes daylight saving time

Standard: UTC+0
Daylight: UTC+1
Next change: 2026-10-25 −60m

When you can actually talk

The window is 9 hours wide — 09:00–18:00 in Dublin, 09:00–18:00 in London.

Dublin 09:00–18:00London 09:00–18:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Dublin	London
IANA zone	Europe/Dublin	Europe/London
Abbreviation	IST	BST
Standard offset	UTC+0	UTC+0
Daylight offset	UTC+1	UTC+1
Clock changes this year	2	2
Country	Ireland	United Kingdom

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Dublin and London?: London is 0 minutes behind Dublin. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call London from Dublin?: Between 09:00–18:00 in Dublin, which is 09:00–18:00 in London. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Dublin observe daylight saving time?: Yes. Dublin runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.
Does London observe daylight saving time?: Yes. London runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.
If it is midday in Dublin, what time is it in London?: It is 12:00 in London, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Dublin and London use?: Dublin uses Europe/Dublin, currently UTC+1 (IST), and London uses Europe/London, currently UTC+1 (BST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.