Time Difference Between Washington DC and London

The time difference between Washington DC and London is 5 hours. When it is 12:00 noon in Washington DC, it is 17:00 in London. Washington DC uses the America/New_York time zone (UTC-4), while London uses Europe/London (UTC+1).

London is 5 hours ahead of Washington DC — 5 hours
Washington DC, United States
19:40:08
Sunday, May 10, 2026
UTC-4 · EDT (DST)
↔
London, United Kingdom
00:40:08
Monday, May 11, 2026
UTC+1 · BST (DST)

Time Zone Details: Washington DC vs London

Detail Washington DC London
Time Zone IDAmerica/New_YorkEurope/London
UTC OffsetUTC-4UTC+1
AbbreviationEDTBST
DST ActiveYes — currently observingYes — currently observing
CountryUnited StatesUnited Kingdom
RegionNorth AmericaEurope

Best Time to Schedule a Call

There are 3 overlapping business hours between Washington DC and London (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

09:00–12:00 in Washington DC  =  14:00–17:00 in London

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from Washington DC time to London time. Rows highlighted in green indicate overlapping business hours in both cities.

Washington DC London
00:00 05:00 Night
01:00 06:00 Night
02:00 07:00 Night
03:00 08:00 Night
04:00 09:00 Night
05:00 10:00 Night
06:00 11:00
07:00 12:00
08:00 13:00
09:00 14:00 Overlap
10:00 15:00 Overlap
11:00 16:00 Overlap
12:00 17:00
13:00 18:00
14:00 19:00
15:00 20:00
16:00 21:00
17:00 22:00
18:00 23:00
19:00 00:00 (+1 day)
20:00 01:00 (+1 day)
21:00 02:00 (+1 day)
22:00 03:00 (+1 day) Night
23:00 04:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Both Washington DC and London are currently observing daylight saving time. The current 5 hours difference reflects both cities' DST offsets. When one city switches back to standard time before the other, the gap will temporarily change by 1 hour.

Practical Tips for Washington DC–London Scheduling

Compare Washington DC and London with Other Cities

From Washington DC

Washington DC vs New York Washington DC vs Tokyo Washington DC vs Sydney Washington DC vs Dubai Washington DC vs Los Angeles Washington DC vs Paris Washington DC vs Singapore Washington DC vs Berlin Washington DC vs Toronto Washington DC vs Hong Kong Washington DC vs Mumbai Washington DC vs Seoul Washington DC vs Chicago Washington DC vs San Francisco Washington DC vs Moscow Washington DC vs Bangkok Washington DC vs Shanghai Washington DC vs Sao Paulo Washington DC vs Mexico City Washington DC vs Cairo Washington DC vs Johannesburg

From London

London vs New York London vs Tokyo London vs Sydney London vs Dubai London vs Los Angeles London vs Paris London vs Singapore London vs Berlin London vs Toronto London vs Hong Kong London vs Mumbai London vs Seoul London vs Chicago London vs San Francisco London vs Moscow London vs Bangkok London vs Shanghai London vs Sao Paulo London vs Mexico City London vs Cairo London vs Johannesburg

Frequently Asked Questions

What is the time difference between Washington DC and London?

The time difference is 5 hours. London is 5 hours ahead of Washington DC.

Does the time difference change during the year?

Yes. Both cities observe daylight saving time, but they may switch on different dates, causing the gap to shift by 1 hour temporarily.

When is the best time to call from Washington DC to London?

The best window is between 09:00 and 12:00 Washington DC time, which corresponds to 14:00–17:00 in London. Both sides fall within normal business hours.

How do I convert Washington DC time to London time?

Add 5 hours to Washington DC time to get London time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.