When the world meets at work.
Read the day in both zones.
If it's this in London, it's that in Seattle.
When it's 8:00 am in London, it's 1:00 am in Seattle — late night there, the same day.
When it's 10:00 am in London, it's 3:00 am in Seattle — late night there, the same day.
When it's 12:00 pm in London, it's 5:00 am in Seattle — morning there, the same day.
When it's 3:00 pm in London, it's 8:00 am in Seattle — morning there, the same day.
When it's 5:00 pm in London, it's 10:00 am in Seattle — late morning there, the same day.
When it's 9:00 pm in London, it's 2:00 pm in Seattle — afternoon there, the same day.
Crossing the border. Money, language, plugs.
Money changes hands at the border: London uses the GBP (£) and Seattle uses the USD ($). Conversations can stay in English, which is official in both countries. Be careful behind the wheel: London drives on the left, Seattle on the right.
- Country
- United Kingdom
- Capital
- London
- Currency
- British pound (GBP · £)
- Language
- English
- Calling code
- +44
- Drives on
- Left
- Country
- United States
- Capital
- Washington, D.C.
- Currency
- United States dollar (USD · $)
- Language
- English
- Calling code
- +1
- Drives on
- Right
Quick answers. Before you book the call.
What's the time difference between London and Seattle?
London is 7 hours behind Seattle. London runs on GMT+0 and Seattle on GMT-7. 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 London, what time is it in Seattle?
10:00 am in London is 3:00 am in Seattle on the same day — late night 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 London, what time is it in Seattle?
3:00 pm in London is 8:00 am in Seattle on the same day — morning 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 London from Seattle?
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 London and Seattle use?
London uses the British pound (GBP, £); Seattle uses the United States dollar (USD, $). 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 London from Seattle?
Dial the international prefix used by your carrier (often 011), then +44, 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 London and Seattle?
Both United Kingdom and United States count English among their official languages, so business meetings often skip translation. London also has no other official tongue; Seattle adds no other official tongue.
Do London and Seattle drive on the same side of the road?
No. United Kingdom drives on the left, United States on the right. If you're renting, expect a learning curve on the first day — especially at roundabouts and when judging the centre of the lane.