London, United Kingdom is 8 hours ahead of Seattle, Washington.


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Seattle, Washington
9:23 PM on Monday, Sep 1, 2014

London, United Kingdom
5:23 AM on Tuesday, Sep 2, 2014





Map from Seattle, WA to London, United Kingdom

Schedule a phone call from Seattle, WA to London, United Kingdom

If you live in Seattle, WA and you want to call a friend in London, United Kingdom, you can try calling them between 11:00 PM and 3:00 PM your time. This will be between 7AM - 11PM their time, since London, United Kingdom is 8 hours ahead of Seattle, Washington.

If you're available any time, but you want to reach someone in London, United Kingdom at work, you may want to try between 1:00 AM and 9:00 AM your time. This is the best time to reach them from 9AM - 5PM during normal working hours.


find a flight to London, United Kingdom

Meeting planner for Seattle, Washington and London, United Kingdom

Unfortunately, there aren't any times that overlap between your normal working hours and theirs. The best we can do with the meeting planner is to expand the range to cover from 8:00 AM to 6:00 PM your time (Seattle, WA).

To schedule a conference call or plan a meeting at the best time for both parties, you should try between 8:00 AM and 10:00 AM your time in Seattle, WA. That will end up being between 4:00 PM and 6:00 PM in London, United Kingdom. The chart on the right shows overlapping times.


UTC-7 hours     UTC+1 hour
Seattle, WA     London, United Kingdom
8:00 AM     4:00 PM
8:30 AM     4:30 PM
9:00 AM     5:00 PM
9:30 AM     5:30 PM
10:00 AM     6:00 PM

Seattle, Washington

City: Seattle
State: Washington
Country: United States
Category: cities
Time zone: US/Pacific (UTC/GMT -7 hours)

London, United Kingdom

City: London
Region: London, City of
Country: United Kingdom
Category: cities
Time zone: Europe/London (UTC/GMT +1 hours)

Find the time difference between cities

Enter your locations below to find the time zone difference between them. Type in airport codes (FRA), cities (Dhaka, Bangladesh), states (Florida), countries (Malaysia) or zip codes (31717).

Time Change between and  


Time difference

Travelmath provides an online time zone converter for places all over the world. You can enter airports, cities, states, countries, or zip codes to find the time difference between any two locations. The calculator will automatically adjust for daylight saving time (DST) in the summer. You can use it as a meeting planner or a scheduler to find the best time to make international phone calls. World time zones have a positive or negative offset computed from Coordinated Universal Time (UTC), or Greenwich Mean Time (GMT). UTC has uniform seconds defined by International Atomic Time (TAI), with leap seconds announced at irregular intervals to compensate for the Earth's slowing rotation. The tz database or zoneinfo database uses the closest city, rather than the more common Eastern, Central, Mountain or Pacific time zones in the United States. Countries often change their daylight saving rules, so please help us stay current by letting us know if you find any pages that need updates.