United Kingdom • Local Time
Saturday, December 27, 2025
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London, the capital of the United Kingdom and home of the Prime Meridian, uses Greenwich Mean Time (GMT/UTC+0) in winter and British Summer Time (BST/UTC+1) from late March to late October. As the birthplace of standardized world time, London remains the reference point for global timekeeping and a critical hub for international business.
BST begins last Sunday of March at 1:00 AM (clocks spring forward), ends last Sunday of October at 2:00 AM (clocks fall back). UK DST is synchronized with the EU, keeping consistent time differences with European capitals.
London is UTC+0 (winter) / UTC+1 (summer). When it's noon in London: New York 7:00 AM, Dubai 4:00 PM, Singapore 8:00 PM, Tokyo 9:00 PM, Sydney 11:00 PM.
Standard office hours are 9:00 AM to 5:30 PM. The City of London financial district operates 8:00 AM to 6:00 PM. Shops typically open 10:00 AM to 6:00 PM (9:00 PM on Thursdays in West End). Pubs traditionally close at 11:00 PM but many have later licenses. Sunday trading is limited (usually 10:00 AM - 4:00 PM for large stores).
The Royal Observatory in Greenwich is where GMT was established in 1884 - you can literally stand on the Prime Meridian (0° longitude). London is 5 hours ahead of New York during winter and maintains this difference during summer due to synchronized DST changes. The city bridges Asian morning markets and American afternoon trading, making it the world's forex capital.
Late spring (May-June) offers longer days, blooming parks, and pleasant temperatures around 15-20°C.
Multicultural metropolis with over 300 languages spoken. Major communities from South Asia, Africa, Europe, and the Middle East. One of the world's leading financial centers.
Temperate oceanic with mild year-round temperatures (5-25°C). Frequent rain but rarely extreme. Summers pleasant, winters mild but grey.