GMT to Seattle Time Converter
Convert Greenwich Mean Time to Seattle instantly.
Scroll the timeline to check any hour of the day.
Greenwich Mean Time
GMT
6:06
Seattle
PST
11:06
Seattle is on daylight savings (PDT) right now, while GMT stays at UTC+0 all year.
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How the GMT to Seattle time difference works
Seattle is 7 hours behind GMT. Greenwich Mean Time (GMT) is the fixed UTC+0 reference time, used by the United Kingdom and Ireland in winter. Seattle (PST) is a city in United States. For example, 9:00 AM GMT is 2:00 AM Seattle. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
7 hours
Daylight saving
Seattle only
GMT offset
UTC+0
Seattle offset
UTC-8
GMT to Seattle conversion chart
| Greenwich Mean Time (GMT) | Seattle (PST) |
|---|---|
| 12:00 AM | 5:00 PM -1 day |
| 1:00 AM | 6:00 PM -1 day |
| 2:00 AM | 7:00 PM -1 day |
| 3:00 AM | 8:00 PM -1 day |
| 4:00 AM | 9:00 PM -1 day |
| 5:00 AM | 10:00 PM -1 day |
| 6:00 AM | 11:00 PM -1 day |
| 7:00 AM | 12:00 AM |
| 8:00 AM | 1:00 AM |
| 9:00 AM | 2:00 AM |
| 10:00 AM | 3:00 AM |
| 11:00 AM | 4:00 AM |
| 12:00 PM | 5:00 AM |
| 1:00 PM | 6:00 AM |
| 2:00 PM | 7:00 AM |
| 3:00 PM | 8:00 AM |
| 4:00 PM | 9:00 AM |
| 5:00 PM | 10:00 AM |
| 6:00 PM | 11:00 AM |
| 7:00 PM | 12:00 PM |
| 8:00 PM | 1:00 PM |
| 9:00 PM | 2:00 PM |
| 10:00 PM | 3:00 PM |
| 11:00 PM | 4:00 PM |
Best time to meet
A standard 9 to 5 workday overlaps from 4:00 PM to 5:00 PM GMT (9:00 AM to 10:00 AM Seattle). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
Seattle (PST)
San FranciscoSanta BarbaraSan DiegoSacramentoFresnoBakersfield
GMT to Seattle questions
Is Seattle ahead of or behind GMT?
Seattle is 7 hours behind GMT. So 9:00 AM GMT is 2:00 AM Seattle, and 5:00 PM GMT is 10:00 AM Seattle.
What time is it in Seattle when it is 12:00 PM GMT?
When it is 12:00 PM (noon) GMT in Greenwich Mean Time, it is 5:00 AM Seattle in Seattle.
How many hours difference is there between GMT and Seattle?
There is a 7 hours difference. Seattle (PST) runs 7 hours behind Greenwich Mean Time (GMT).
Do GMT and Seattle observe daylight saving time?
Seattle observes daylight saving time but Greenwich Mean Time does not, so the difference between them changes by an hour twice a year. The United Kingdom and Ireland use GMT only in winter; from late March to late October they switch to British Summer Time (BST), one hour ahead of GMT.
What is the best time to schedule a meeting between GMT and Seattle?
A standard 9-to-5 workday overlaps from 4:00 PM to 5:00 PM GMT (9:00 AM to 10:00 AM Seattle). Scheduling inside that window keeps the call during business hours in both Greenwich Mean Time and Seattle.
Which cities use GMT and Seattle?
Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester. Seattle (PST) covers cities such as San Francisco, Santa Barbara, San Diego, Sacramento, Fresno, Bakersfield.