London to Washington D.C. Time Difference

How many hours is London ahead of Washington D.C.?

Washington D.C. is 5 hours behind London. When it is 12:00 noon in London, it is 07:00 in Washington D.C.. London operates on Europe/London (UTC+1), while Washington D.C. uses America/New York (UTC-4).

What is the best time to call Washington D.C. from London?

There are 4 hours of overlapping business time (9 AM–5 PM) between London and Washington D.C.. The best window is 14:00–18:00 London time (09:00–13:00 in Washington D.C.).

Does the London to Washington D.C. time difference change throughout the year?

The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.

Flying between London and Washington D.C.

The distance between London and Washington D.C. is approximately 5,897 km. A direct flight typically takes around 7.9 hours. Your arrival clock will show local Washington D.C. time — use our Flight Time Calculator to predict exact arrival times.