Seattle to GMT Time Converter
Convert Seattle to Greenwich Mean Time instantly.
Scroll the timeline to check any hour of the day.
Seattle
PST
1:24
Greenwich Mean Time
GMT
9:24
Seattle and GMT are on daylight savings right now, shown as PDT and BST.
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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 time zone of the United Kingdom and Ireland. 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
Both observe
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?
Both Seattle and Greenwich Mean Time observe daylight saving time, but they switch on different dates, so the gap briefly shifts by an hour around the spring and autumn changeovers.
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.