Seattle to London Time Converter
London is +8h ahead of Seattle
Quick converter
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FROM
Seattle
United States
UTC-07:00
TO
London
United Kingdom
UTC+01:00
Date-aware conversion
Convert a specific date and time
Result
Tue, May 26, 2026 20:36
Seattle: Tuesday, May 26, 2026 12:36 PM PDT to London: Tuesday, May 26, 2026 8:36 PM GMT+1.
London is 8h ahead of Seattle on this date
24-Hour Comparison
Every hour in Seattle and the corresponding time in London. Green rows indicate business hours in London.
Time zones
Seattle uses America/Los_Angeles (PDT) and London uses Europe/London (GMT+1). The difference can shift during daylight saving changes, so checking the exact date matters.
Best use
Use the green rows to spot normal working hours in London. For teams across more cities, open the meeting planner and compare up to five locations.
Plan a meetingMeeting guidance
Best time for Seattle and London
The easiest overlap starts around 9:00 AM and runs through 9:00 AM in the source city, while the destination city is also inside normal working hours. For important calls, check the meeting date because the offset can change when either location enters or leaves daylight saving time.
Compare meeting hoursQuick examples
City context
About these cities
About Seattle
Seattle is located in United States (North America). It uses the America/Los_Angeles timezone with a standard offset of UTC-07:00. It observes DST, switching between PST and PDT. See the full Seattle time page for live clock and planning details.
About London
London is located in United Kingdom (Europe). It uses the Europe/London timezone with a standard offset of UTC+01:00. It observes DST, switching between GMT and BST. See the full London time page for live clock and planning details.
Frequently Asked Questions
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