City comparison · time difference and converter
London vs Washington DC time difference and converter
Washington DC is 5 hours behind London right now. London sits in United Kingdom on London; Washington DC sits in United States on New York. They are roughly 5,898 km apart (3,665 mi), a flight of about 7h 56m. London's metro holds around 9.5 million people; Washington DC's around 6.3 million.
London
Washington DC
Best meeting times today
Open converter →Slot 1
14:00 / 09:00
London / Washington DC
Both inside business hoursSlot 2
15:00 / 10:00
London / Washington DC
Both inside business hoursSlot 3
16:00 / 11:00
London / Washington DC
Both inside business hours24-hour comparison heatmap
Each row is one hour in London. Green rows are inside business hours in both cities; amber means only one side is at their desk; grey rows fall outside business hours in both.
Public holidays in November 2026
Veterans Day
Washington DC, United States
Wed, Nov 11
Thanksgiving Day
Washington DC, United States
Thu, Nov 26
Travel context
Great-circle distance
5,898 km
(3,665 mi)
Approximate flight
7h 56m
850 km/h cruise + 1h taxi/climb/descent
Jet lag
5h
Roughly 1 day to adjust per timezone crossed
Convert any specific time
The heatmap gives you the shape of the day. If you need to convert one specific hour, say a customer call or a release window, open the converter with both cities already loaded.
Open in converter →Frequently asked questions
Working between London and Washington DC
The difference between London and Washington DC is not really a number, it's a daily rhythm. Washington DC is 5 hours behind London on the clock today, but the lived version is that London is ahead in the calendar, so by the time Washington DC comes online, half of London's day is already gone. That gap, more than the raw offset, is what teams have to design around.
In London, the working day picks up earliest in the financial districts- City of London desks switch on by 07:30 for the European open. The mood in Washington DC is its own story: Washington DC settles into the evening at the usual hour, with the local commuter pattern setting the pace. If you are scheduling between the two, the heatmap above marks the rows where both patterns line up.
Daylight saving is the other thing to keep an eye on. United Kingdom shifts the clock on the last Sunday of March and October; United States shifts on the second Sunday of March and the first Sunday of November. When the two changes are weeks apart, the offset between London and Washington DC is one hour off the usual for that stretch, a cliff that catches recurring calendar invites unless your calendar app rebases them automatically. Pin the meeting to a city, not an offset, and the tool handles the rest.
For travellers, the 7h 56m flight is the short version of the story. The longer one is jet lag: roughly one day of adjustment per timezone crossed, which means a trip across the 5-hour gap costs about 5 groggy days on each side. Pilots and cabin crew swear by morning sunlight and an early walk; whatever your routine, the wall-clock numbers above are the source of truth for your first morning in the new city.