UK to Washington, DC Time Converter
About this conversion
Washington, DC is on Eastern Time, like New York and Boston. It is normally five hours behind the UK, with a four-hour gap in the weeks when the UK and US clocks differ.
The British Embassy and many UK government and policy bodies work with Washington, so diplomatic and policy calls follow a pattern: UK morning conferences are too early for the US capital, and most joint calls take place from 14:00 to 17:00 UK time. Official events are announced in local Washington time.
When the time difference changes
Changes over the next two years, from daylight saving on either side.
- Sunday, 25 October 2026: Washington, DC becomes 4 hours behind UK.
- Sunday, 1 November 2026: Washington, DC becomes 5 hours behind UK.
- Sunday, 14 March 2027: Washington, DC becomes 4 hours behind UK.
- Sunday, 28 March 2027: Washington, DC becomes 5 hours behind UK.
- Sunday, 31 October 2027: Washington, DC becomes 4 hours behind UK.
- Sunday, 7 November 2027: Washington, DC becomes 5 hours behind UK.
- Sunday, 12 March 2028: Washington, DC becomes 4 hours behind UK.
- Sunday, 26 March 2028: Washington, DC becomes 5 hours behind UK.
Best time to call or meet
14:00 to 17:00 UK is 09:00 to 12:00 Washington, DC, 3 hours of shared 09:00 to 17:00 time.
Common times
- 06:00 UK = 01:00 Washington, DC
- 09:00 UK = 04:00 Washington, DC
- 12:00 UK = 07:00 Washington, DC
- 15:00 UK = 10:00 Washington, DC
- 17:00 UK = 12:00 Washington, DC
- 20:00 UK = 15:00 Washington, DC
UK to Washington, DC hour-by-hour table
Highlighted rows fall within 09:00 to 17:00 on both sides.
| UK | Washington, DC |
|---|---|
| 00:00 | 19:00 (previous day) |
| 01:00 | 20:00 (previous day) |
| 02:00 | 21:00 (previous day) |
| 03:00 | 22:00 (previous day) |
| 04:00 | 23:00 (previous day) |
| 05:00 | 00:00 |
| 06:00 | 01:00 |
| 07:00 | 02:00 |
| 08:00 | 03:00 |
| 09:00 | 04:00 |
| 10:00 | 05:00 |
| 11:00 | 06:00 |
| 12:00 | 07:00 |
| 13:00 | 08:00 |
| 14:00 | 09:00 |
| 15:00 | 10:00 |
| 16:00 | 11:00 |
| 17:00 | 12:00 |
| 18:00 | 13:00 |
| 19:00 | 14:00 |
| 20:00 | 15:00 |
| 21:00 | 16:00 |
| 22:00 | 17:00 |
| 23:00 | 18:00 |
Related conversions
Clock change guides
- What Is Daylight Saving Time (DST)? A Plain-English GuideWhat daylight saving time is, how it works in the UK, Europe and the US, why it exists, its history, who uses it and the argument over scrapping it.
- Why Do the Clocks Go Back in October? The Real ReasonThe clocks go back in autumn to return the UK to GMT, so winter mornings are lighter. The history, the rule, what time it happens and what changes for you.
- When Do the Clocks Go Forward Again After Going Back?When the UK clocks go forward again after the autumn change, how long the UK stays on GMT, when evenings get lighter and how to remember to reset your clocks.
Frequently asked questions
What is 15:00 UK in Washington, DC?
15:00 UK is 10:00 Washington, DC at the moment. The answer can change by an hour when either side changes its clocks.
What are the shared working hours for UK and Washington, DC?
Counting 09:00 to 17:00 as the working day on both sides, there are 3 shared hours, starting at 14:00 UK.
When does the UK to Washington, DC time difference change?
It next changes on Sunday, 25 October 2026, when the gap becomes 4 hours behind.
What is the time difference between London and Washington, DC?
Five hours for most of the year, four hours in the changeover weeks.
When does the UK to Washington gap change?
The page lists every date for the next two years, including the March and October weeks.