Greenwich Mean Time

London time now, live flip clock

Synchronizing time

Synchronizing with server time.

Clock Color

Greenwich Mean Time alternates between GMT (UTC+0) and BST (UTC+1). The live clock for London applies the correct seasonal rule automatically. The live clock is synchronized with Digital Clock Online’s server after the page loads.

Time in London at a glance

Time zone: Greenwich Mean Time (GMT)
Standard time: GMT, UTC+0
Daylight saving time: BST, UTC+1
Used in: the United Kingdom, Guernsey, the Isle of Man, Jersey

Time zone names for developers

IANA time zone identifier: Europe/London

When the clocks change in London

Clocks in London change twice a year.

On Sunday 29 March 2026 at 1:00 AM, clocks went forward one hour, to BST.
On Sunday 25 October 2026 at 2:00 AM, clocks go back one hour, to GMT.
On Sunday 28 March 2027 at 1:00 AM, clocks go forward one hour, to BST.

Daylight saving dates around the world

Places on Greenwich Mean Time

Greenwich Mean Time covers London, Birmingham, Glasgow and Manchester. Used in the United Kingdom, Guernsey, the Isle of Man, Jersey.

How many hours ahead or behind London

On 24 October 2026, New York is 5 hours behind London.

City	Difference from London
New York	5 hours behind
Los Angeles	8 hours behind
Dubai	3 hours ahead
Singapore	7 hours ahead
Tokyo	8 hours ahead
Sydney	10 hours ahead
Your time zone	Detected after this page loads

Places on the same standard time as London

These places keep the same standard time as London, UTC+0. Where one of them changes clocks, they can be an hour apart for part of the year.