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
9:24
Seattle
PST
1:24
GMT and Seattle are on daylight savings right now, shown as BST and PDT.
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How the GMT to Seattle time difference works
Seattle is 8 hours behind GMT. Greenwich Mean Time (GMT) is the time zone of the United Kingdom and Ireland. Seattle (PST) is a city in United States. For example, 9:00 AM GMT is 1:00 AM Seattle. 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
GMT offset
UTC+0
Seattle offset
UTC-8
GMT to Seattle conversion chart
| Greenwich Mean Time (GMT) | Seattle (PST) |
|---|---|
| 12:00 AM | 4:00 PM -1 day |
| 1:00 AM | 5:00 PM -1 day |
| 2:00 AM | 6:00 PM -1 day |
| 3:00 AM | 7:00 PM -1 day |
| 4:00 AM | 8:00 PM -1 day |
| 5:00 AM | 9:00 PM -1 day |
| 6:00 AM | 10:00 PM -1 day |
| 7:00 AM | 11:00 PM -1 day |
| 8:00 AM | 12:00 AM |
| 9:00 AM | 1:00 AM |
| 10:00 AM | 2:00 AM |
| 11:00 AM | 3:00 AM |
| 12:00 PM | 4:00 AM |
| 1:00 PM | 5:00 AM |
| 2:00 PM | 6:00 AM |
| 3:00 PM | 7:00 AM |
| 4:00 PM | 8:00 AM |
| 5:00 PM | 9:00 AM |
| 6:00 PM | 10:00 AM |
| 7:00 PM | 11:00 AM |
| 8:00 PM | 12:00 PM |
| 9:00 PM | 1:00 PM |
| 10:00 PM | 2:00 PM |
| 11:00 PM | 3:00 PM |
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 8 hours behind GMT. So 9:00 AM GMT is 1:00 AM Seattle, and 5:00 PM GMT is 9:00 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 4:00 AM Seattle in Seattle.
How many hours difference is there between GMT and Seattle?
There is a 8 hours difference. Seattle (PST) runs 8 hours behind Greenwich Mean Time (GMT).
Do GMT and Seattle observe daylight saving time?
Both Greenwich Mean Time and Seattle 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 GMT and Seattle?
A standard 9-to-5 workday in Greenwich Mean Time and Seattle does not overlap, so pick the early morning in the later zone or the late evening in the earlier zone.
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.