Meeting time

Best time to meet: London and Seattle

London is 8 hours ahead of Seattle right now, so their working days do not overlap. The time that asks least of both is 4:30 PM in London, which is 8:30 AM in Seattle — one of you starts early or stays late.

Tue 3:57 PMLondon · Greenwich Mean TimeTue 7:57 AMSeattle · Pacific Standard Time
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Hour by hour

With the clocks as they are on November 10, 2026, London time on the left. A working day here is 9 AM to 5 PM.

LondonSeattle
6 AM10 PM day beforeBoth off
7 AM11 PM day beforeBoth off
8 AM12 AMBoth off
9 AM1 AMLondon at work
10 AM2 AMLondon at work
11 AM3 AMLondon at work
12 PM4 AMLondon at work
1 PM5 AMLondon at work
2 PM6 AMLondon at work
3 PM7 AMLondon at work
4 PM8 AMLondon at work
5 PM9 AMSeattle at work
6 PM10 AMSeattle at work
7 PM11 AMSeattle at work
8 PM12 PMSeattle at work
9 PM1 PMSeattle at work
10 PM2 PMSeattle at work

When the clocks change

The gap moves when either city changes its clocks. The next twelve months:

DatesLondon isBoth at work (London time)Easiest (London / Seattle)
Now to March 14, 20278 hours aheadNone4:30 PM / 8:30 AM
March 14, 2027 to March 28, 2027
clocks in Seattle go forward		7 hours ahead4 PM–5 PM (1 hour)4 PM / 9 AM
March 28, 2027 to October 31, 2027
clocks in London go forward		8 hours aheadNone4:30 PM / 8:30 AM
October 31, 2027 to November 7, 2027
clocks in London go back		7 hours ahead4 PM–5 PM (1 hour)4 PM / 9 AM
November 7, 2027 onward
clocks in Seattle go back		8 hours aheadNone4:30 PM / 8:30 AM

Seattle keeps the same clock as San Francisco.

Questions people ask

What time is it in Seattle when it is 9 AM in London?
1 AM in Seattle, while London is 8 hours ahead.
When is the best time for a call between London and Seattle?
4:30 PM in London, which is 8:30 AM in Seattle. Their working days do not overlap, so this is the fairest time for both.
Does the time difference between London and Seattle change during the year?
Yes — it changes 4 times in the next twelve months, when the clocks go forward or back; the dates are in the table above.

More cities

New York and London3 hours of shared working day · meet at 10 AM New York timeLondon and San FranciscoNo shared working hours · fairest at 4:30 PM London timeLondon and Bangalore2 hours 30 minutes of shared working day · meet at 10 AM London timeLondon and SingaporeNo shared working hours · fairest at 8:30 AM London timeLondon and Los AngelesNo shared working hours · fairest at 4:30 PM London timeLondon and SydneyNo shared working hours · fairest at 7 AM London timeLondon and TokyoNo shared working hours · fairest at 8 AM London timeLondon and Berlin7 hours of shared working day · meet at 10 AM London timeLondon and Chicago2 hours of shared working day · meet at 4 PM London timeLondon and Dubai4 hours of shared working day · meet at 10 AM London timeLondon and Paris7 hours of shared working day · meet at 10 AM London timeLondon and Toronto3 hours of shared working day · meet at 3 PM London time

Every city from London · Every city from Seattle · All cities · Plan across more than two cities

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