What is the normal time difference between London and Barcelona?

Barcelona is usually 1 hour ahead of London. London observes GMT (UTC+0) in winter and BST (UTC+1) in summer, while Barcelona observes CET (UTC+1) in winter and CEST (UTC+2) in summer. Because both cities shift their clocks on the same European schedule, the gap stays at 1 hour for most of the year.

Is there ever a period when London and Barcelona are the same time?

There are brief windows — typically about one week in spring and one week in autumn — when the UK and the EU shift their clocks on different dates. During those windows the offset can temporarily be 0 hours (same time) or 2 hours. This tool reflects the real offset live so you never have to guess.

When does the UK change its clocks?

The UK moves clocks forward on the last Sunday in March at 01:00 GMT (becoming BST, UTC+1) and back on the last Sunday in October at 02:00 BST (returning to GMT, UTC+0).

When does Spain (Barcelona) change its clocks?

Spain follows the EU schedule: clocks go forward on the last Sunday in March at 02:00 CET (becoming CEST, UTC+2) and back on the last Sunday in October at 03:00 CEST (returning to CET, UTC+1). The dates are typically the same as the UK, but can differ by a week on rare years.

What timezone does Barcelona use?

Barcelona uses the Europe/Madrid IANA timezone, which is Central European Time (CET, UTC+1) in winter and Central European Summer Time (CEST, UTC+2) in summer.

Is this tool accurate for scheduling?

Yes. The tool uses the IANA timezone database embedded in your browser, which is the same authoritative source used by operating systems and calendar applications worldwide. Accuracy depends on your device clock being synchronized via NTP, which most devices do automatically.

Time Difference: London to Barcelona

Name: Time Difference: London to Barcelona
Availability: InStock
Author: Nham Vu

See the current time in London and Barcelona side by side and get the exact hour offset between them, updated live every second.

London, United Kingdom

--:--:--

GMT UTC+0

Barcelona, Spain

--:--:--

CET UTC+1

Current Offset

+1 hour

Barcelona is 1 hour ahead of London

Convert London Time to Barcelona Time

Based on the current offset — updates automatically

London	Barcelona

Summary

See the current time in London and Barcelona side by side and get the exact hour offset between them, updated live every second.

How it works

Your browser reads the current moment from your device clock.
It converts that moment to Europe/London time using the IANA timezone database built into modern browsers.
The same moment is converted to Europe/Madrid (Barcelona) time.
The UTC offsets of both cities are compared to calculate the exact hour difference.
All three values — London time, Barcelona time, and the offset — refresh every second.
DST transitions for both cities are handled automatically, so the offset switches correctly each spring and autumn.

Use cases

Scheduling video calls between London and Barcelona offices.
Checking whether a colleague in Barcelona is likely still at work.
Planning travel between the United Kingdom and Spain.
Watching live sports events that broadcast across both countries.
Remote workers coordinating daily standups across the UK and Spain.
Verifying whether the two cities share the same DST status on a given date.
Students and teachers arranging online lessons across time zones.
Travelers checking arrival times and local time at destination.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu