All Comparisons
Time Difference: London vs Seattle
Current time in both cities, business hours overlap, and best meeting times for teams working across London and Seattle.
London
—
United Kingdom
Seattle
—
United States
Seattle is 8h behind London
UTC offset: London +1h · Seattle -7h
Business Hours Overlap
Hours when both London and Seattle are in business hours (9 AM–5 PM local).
00:00 UTC12:00 UTC23:00 UTC
Both in business hours London only Seattle only
No business hours overlap
London and Seattle have no shared 9 AM–5 PM window. Consider early morning or late evening calls.
Convert a Time
Enter a time in London to see what it is in Seattle.
Working with teammates in London and Seattle?
Timely automatically converts times in Slack so everyone sees messages in their local timezone — no mental math required.