When the world meets at work.
Read the day in both zones.
If it's this in Seattle, it's that in London.
When it's 8:00 am in Seattle, it's 3:00 pm in London — afternoon there, the same day.
When it's 10:00 am in Seattle, it's 5:00 pm in London — afternoon there, the same day.
When it's 12:00 pm in Seattle, it's 7:00 pm in London — evening there, the same day.
When it's 3:00 pm in Seattle, it's 10:00 pm in London — night there, the same day.
When it's 5:00 pm in Seattle, it's 12:00 am in London — late night there, the next day.
When it's 9:00 pm in Seattle, it's 4:00 am in London — late night there, the next day.
Crossing the border. Money, language, plugs.
Money changes hands at the border: Seattle uses the USD ($) and London uses the GBP (£). Conversations can stay in English, which is official in both countries. Be careful behind the wheel: Seattle drives on the right, London on the left.
- Country
- United States
- Capital
- Washington, D.C.
- Currency
- United States dollar (USD · $)
- Language
- English
- Calling code
- +1
- Drives on
- Right
- Country
- United Kingdom
- Capital
- London
- Currency
- British pound (GBP · £)
- Language
- English
- Calling code
- +44
- Drives on
- Left
Quick answers. Before you book the call.
What's the time difference between Seattle and London?
Seattle is 7 hours ahead of London. Seattle runs on GMT-7 and London on GMT+0. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.
When it's 10 am in Seattle, what time is it in London?
10:00 am in Seattle is 5:00 pm in London on the same day — afternoon there. The same shift applies to any hour; the quick-conversion cards and the 24-hour table above cover the full day.
When it's 3 pm in Seattle, what time is it in London?
3:00 pm in Seattle is 10:00 pm in London on the same day — night there. The same shift applies to any hour; the quick-conversion cards and the 24-hour table above cover the full day.
When's the best time to schedule a meeting?
There are 1 hour where both cities are inside a 09:00–17:00 workday. Aim for the middle of that window so neither side is starting or closing out.
Does daylight saving time change the difference?
Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.
How far is Seattle from London?
About 7,700 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 9h 33m, not counting airport time, winds, or routing around restricted airspace.
Can I send this meeting time as a calendar invite?
Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.
What currency do Seattle and London use?
Seattle uses the United States dollar (USD, $); London uses the British pound (GBP, £). Check the live rate before transferring money or paying with a card abroad — most banks add a 1–3 % FX margin on top of the mid-market rate.
How do I call Seattle from London?
Dial the international prefix used by your carrier (often 00), then +1, then the local number — drop any leading zero of the city or mobile code. For free calls, WhatsApp, Signal, and FaceTime work over Wi-Fi regardless of country code.
What language is spoken in Seattle and London?
Both United States and United Kingdom count English among their official languages, so business meetings often skip translation. Seattle also has no other official tongue; London adds no other official tongue.
Do Seattle and London drive on the same side of the road?
No. United States drives on the right, United Kingdom on the left. If you're renting, expect a learning curve on the first day — especially at roundabouts and when judging the centre of the lane.