Current time in London

United Kingdom · UTC+0/UTC+1

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Europe/London

UTC offset

UTC+0/UTC+1

Daylight Saving

Yes — observed

Time zone ID

Europe/London

Business hours

9:00 AM – 5:30 PM GMT (Monday–Friday)

About London's time zone

London follows Greenwich Mean Time (GMT, UTC+0) in winter and British Summer Time (BST, UTC+1) from the last Sunday in March to the last Sunday in October. As the location of the Prime Meridian at Greenwich, London is the reference point for all world time zones. The London Stock Exchange opens at 8:00am GMT, making London one of the first major financial centers to open each day.

Best time to call London

Calling from	Recommended window
New York	9:00 AM – 6:00 PM ET
Dubai	12:00 PM – 9:00 PM GST
Singapore	5:00 PM – 2:00 AM SGT
São Paulo	6:00 AM – 3:00 PM BRT

Did you know? The Royal Observatory in Greenwich was established in 1675 by King Charles II specifically to improve navigation at sea. Today, the Prime Meridian line runs right through the courtyard, and tourists can stand with one foot in each hemisphere.

Cities in the same time zone