United Kingdom
United States
London to Washington D.C. Time Difference
Washington D.C. is 5 hours behind London
London vs Washington D.C. — At a Glance
London to Washington D.C. — Hour-by-Hour
About London and Washington D.C.
London (population: 8.8M) is known for global finance, the City of London, Buckingham Palace, and the world's oldest underground railway. Washington D.C. (population: 0.7M) is known for the U.S. capital, the White House, Congress, and the Smithsonian museums.
Business Hours Overlap
Washington D.C. is a national capital, so official government hours (typically 9 AM–5 PM) are the primary window for diplomatic and administrative communication with London.
Calling Between Cities
To call Washington D.C. (+1) from London (+44), aim for late morning or early afternoon in London — that corresponds to morning hours in Washington D.C. when people are usually available.
Currency
London uses GBP while Washington D.C. uses USD. Check current exchange rates before making payments or transferring funds between the two cities.
Language
London and Washington D.C. share English as a common language, which simplifies business communication.
Use our world clock tool to compare London and Washington D.C. visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between London and Washington D.C.?
Washington D.C., United States is 5 hours behind London, United Kingdom. London is in the Europe/London timezone (UTC+1) and Washington D.C. is in the America/New York timezone (UTC-4).
When it's noon in London, what time is it in Washington D.C.?
When it's 12:00 PM (noon) in London, it's 7:00 AM in Washington D.C..
What is the best time to call Washington D.C. from London?
The best time to call Washington D.C. from London is during the overlapping business hours. When it's 9 AM in London, it's 4:00 AM in Washington D.C.. Aim for late morning to early afternoon in London for the best chance of reaching someone during working hours.
What currency does Washington D.C. use?
Washington D.C., United States uses USD. London uses GBP. You will need to check the current exchange rate for transactions between the two.
What language is spoken in Washington D.C.?
The primary language in Washington D.C. is English. London also speaks English, making communication easier.
How do I dial Washington D.C. from London?
To call Washington D.C. from London, dial your international access code followed by +1 and the local number. London uses country code +44 and Washington D.C. uses +1.
