What is the normal time difference between London and Lisbon?

London and Lisbon are almost always on the same time. Both observe GMT (UTC+0) in winter and BST/WEST (UTC+1) in summer, and they switch on the same last Sunday in March and last Sunday in October. There is normally a 0-hour difference between the two cities.

Is there ever a time when London and Lisbon are different?

Rarely, but yes. Portugal adopted the EU DST schedule in 1992. If either country ever diverges from the standard EU changeover dates, a temporary 1-hour gap can appear. This tool calculates the real live offset so you always see the correct difference.

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 Portugal (Lisbon) change its clocks?

Portugal moves clocks forward on the last Sunday in March at 01:00 WET (becoming WEST, UTC+1) and back on the last Sunday in October at 02:00 WEST (returning to WET, UTC+0). This matches the UK change day exactly.

What are good meeting times for both London and Lisbon?

Because the two cities are normally on the same time, any business hour in London (09:00–17:00) is also business hours in Lisbon. The meeting overlap finder on this page highlights shared windows automatically.

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 Lisbon

See the current time in London and Lisbon side by side, with the exact hour offset and a business-hours overlap finder, updated live every second.

London, United Kingdom

--:--:--

GMT UTC+0

Lisbon, Portugal

--:--:--

WET UTC+0

Current Offset

0 hours

London and Lisbon are on the same time

Meeting Overlap Finder

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

London	Lisbon	Status

Convert London Time to Lisbon Time

Based on the current offset — updates automatically

London	Lisbon

Summary

This tool displays the live current time in both London (Europe/London — GMT in winter, BST in summer) and Lisbon (Europe/Lisbon — WET in winter, WEST in summer) side by side. The exact offset is calculated automatically and adjusts whenever either city transitions for Daylight Saving Time. Use it to schedule calls between the UK and Portugal, coordinate remote teams, or check whether a colleague in Lisbon is still at work.

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/Lisbon time.
The UTC offsets of both cities are compared to calculate the exact hour difference.
All three values — London time, Lisbon 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 Lisbon offices.
Checking if a colleague in Lisbon is still at their desk.
Planning travel between the UK and Portugal and comparing arrival times.
Remote teams coordinating daily standups across the UK and Portugal.
Finding overlapping business hours for London-Lisbon meetings.
Verifying whether both cities currently observe daylight saving time.
Journalists checking broadcast times for live Portuguese events.
Students and teachers arranging online lessons across the UK and Portugal.

Frequently Asked Questions

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