Seattle to GMT Time ConverterFind the Best Time
Convert Seattle to Greenwich Mean Time instantly.
Scroll the timeline to check any hour of the day.
Seattle
PST
5:01
Greenwich Mean Time
GMT
1:01
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How the Seattle to GMT time difference works
GMT is 8 hours ahead of Seattle. Seattle (PST) is a city in United States. Greenwich Mean Time (GMT) is the fixed UTC+0 reference time, used by the United Kingdom and Ireland in winter. For example, 9:00 AM Seattle is 5:00 PM GMT. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
8 hours
Daylight saving
Seattle only
Seattle offset
UTC-8
GMT offset
UTC+0
Seattle to GMT conversion chart
| Seattle (PST) | Greenwich Mean Time (GMT) |
|---|---|
| 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 | 12:00 AM +1 day |
| 5:00 PM | 1:00 AM +1 day |
| 6:00 PM | 2:00 AM +1 day |
| 7:00 PM | 3:00 AM +1 day |
| 8:00 PM | 4:00 AM +1 day |
| 9:00 PM | 5:00 AM +1 day |
| 10:00 PM | 6:00 AM +1 day |
| 11:00 PM | 7:00 AM +1 day |
Cities in each time zone
Seattle (PST)
San FranciscoSanta BarbaraSan DiegoSacramentoFresnoBakersfield
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
Seattle to GMT questions
Is GMT ahead of or behind Seattle?
GMT is 8 hours ahead of Seattle. So 9:00 AM Seattle is 5:00 PM GMT, and 5:00 PM Seattle is 1:00 AM GMT.
What time is it in GMT when it is 12:00 PM Seattle?
When it is 12:00 PM (noon) Seattle in Seattle, it is 8:00 PM GMT in Greenwich Mean Time.
How many hours difference is there between Seattle and GMT?
There is a 8 hours difference. Greenwich Mean Time (GMT) runs 8 hours ahead of Seattle (PST).
Do Seattle and GMT 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 Seattle and GMT?
A standard 9-to-5 workday in Seattle and Greenwich Mean Time does not overlap, so pick the early morning in the later zone or the late evening in the earlier zone.
Which cities use Seattle and GMT?
Seattle (PST) covers cities such as San Francisco, Santa Barbara, San Diego, Sacramento, Fresno, Bakersfield. Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester.