What is the time difference between Rome and London?

London is 1 hour behind Rome. 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 Rome?

Between 10:00–18:00 in Rome, which is 09:00–17:00 in London. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Rome observe daylight saving time?

Yes. Rome runs on UTC+1 in winter and UTC+2 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 Rome, what time is it in London?

It is 11:00 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 Rome and London use?

Rome uses Europe/Rome, currently UTC+2 (CEST), 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 Rome time to London time

London is 1 hour behind Rome right now, so midday in Rome lands in the morning 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 Rome, and what the clock reads in London at that same moment.

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

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.

Rome

Observes daylight saving time

Standard: UTC+1
Daylight: UTC+2
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

You have 8 hours of shared working time: 10:00–18:00 in Rome, which is 09:00–17:00 in London.

Rome 10:00–18:00London 09:00–17:00

Reference

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

	Rome	London
IANA zone	Europe/Rome	Europe/London
Abbreviation	CEST	BST
Standard offset	UTC+1	UTC+0
Daylight offset	UTC+2	UTC+1
Clock changes this year	2	2
Country	Italy	United Kingdom

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

Common questions

What is the time difference between Rome and London?: London is 1 hour behind Rome. 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 Rome?: Between 10:00–18:00 in Rome, which is 09:00–17:00 in London. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Rome observe daylight saving time?: Yes. Rome runs on UTC+1 in winter and UTC+2 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 Rome, what time is it in London?: It is 11:00 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 Rome and London use?: Rome uses Europe/Rome, currently UTC+2 (CEST), and London uses Europe/London, currently UTC+1 (BST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.