What is the time difference between London and Brussels?

Brussels is 1 hour ahead of London all year. London observes GMT (UTC+0) in winter and BST (UTC+1) in summer; Brussels observes CET (UTC+1) in winter and CEST (UTC+2) in summer. Because both cities shift their clocks on the same Sunday, the offset remains a constant 1 hour.

Do London and Brussels change clocks at the same time?

Yes. Both the UK and Belgium move clocks forward on the last Sunday in March and back on the last Sunday in October. There is no window where the offset changes between the two cities.

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 Brussels change its clocks?

Belgium moves clocks 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). This is the same calendar date as the UK change.

What are good meeting times for both London and Brussels?

Because Brussels is only 1 hour ahead of London, normal 09:00–18:00 business hours overlap for 8 hours: 09:00–17:00 London corresponds to 10:00–18:00 Brussels.

Is this tool accurate for scheduling?

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

Time Difference: London to Brussels

See the current time in London and Brussels side by side, with the exact hour offset, updated live every second.

London, United Kingdom

--:--:--

GMT UTC+0

Brussels, Belgium

--:--:--

CET UTC+1

Current Offset

+1 hour

Brussels is 1 hour ahead of London

Meeting Overlap Finder

Business hours (09:00–18:00) highlighted — best overlap shaded

London	Brussels	Status

Convert London Time to Brussels Time

Based on the current offset — updates automatically

London	Brussels

Summary

This tool displays the live current time in both London (Europe/London — GMT in winter, BST in summer) and Brussels (Europe/Brussels — CET in winter, CEST in summer) side by side. London and Brussels switch to daylight saving time on the same Sunday each spring and autumn, so the offset is almost always exactly 1 hour. The exact offset is calculated automatically from your browser's IANA timezone database and refreshes 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/Brussels time.
The UTC offsets of both cities are compared to calculate the exact hour difference.
All three values — London time, Brussels time, and the offset — refresh every second.
DST transitions for both cities are handled automatically; they switch on the same day, so the offset stays at 1 hour year-round.

Use cases

Scheduling video calls between London and Brussels offices.
Checking if a colleague in Brussels is still at their desk.
Planning travel between the UK and Belgium.
Remote teams coordinating daily standups across the UK and Belgium.
Finding overlapping business hours for London-Brussels meetings.
Verifying the current timezone abbreviation for each city.
Journalists checking broadcast times for live EU and UK events.
Students and teachers arranging online lessons between the UK and Belgium.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu