Seattle Time to GMT Converter
GMT is 8 hours ahead of PST. 9:00 AM PST = 5:00 PM GMT.
GMT is 8 hours ahead of PST at the moment. To convert Seattle Time to GMT, add 8 hours to the Seattle Time time: 9:00 AM PST = 5:00 PM GMT.
Seattle Time (Seattle time) is used in Seattle, USA. GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
Seattle Time to GMT time conversion table
Seattle Time to GMT on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Seattle 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 |
| Seattle Time | GMT |
|---|---|
| 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 |
| Seattle Time | GMT |
|---|---|
| 4:00 PM | 12:00 AM+1 |
| 5:00 PM | 1:00 AM+1 |
| 6:00 PM | 2:00 AM+1 |
| 7:00 PM | 3:00 AM+1 |
| 8:00 PM | 4:00 AM+1 |
| 9:00 PM | 5:00 AM+1 |
| 10:00 PM | 6:00 AM+1 |
| 11:00 PM | 7:00 AM+1 |
Conversion table from Seattle Time to GMT for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in GMT, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert Seattle Time to GMT
Add 8 hours to the Seattle Time time to get GMT.
Example: 9:00 AM PST = 5:00 PM GMT.
Across midnight: 10:00 PM PST = 6:00 AM GMT (next day). The date changes, so always check the day as well as the hour.
Time difference between Seattle Time and GMT
The time difference between Seattle Time and GMT is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: GMT is 8 hours ahead of Seattle Time.
- 8 Mar 2026 – 31 Oct 2026: GMT is 7 hours ahead of Seattle Time.
- 1 Nov 2026 – 30 Dec 2026: GMT is 8 hours ahead of Seattle Time.
Seattle Time and GMT during daylight saving time
- Seattle Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from PST (UTC−8) to PDT (UTC−7).
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
Best time for a meeting between Seattle Time and GMT
Seattle Time and GMT have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM PST, which is 3:00 PM GMT.
Seattle Time to GMT FAQ
What is the time difference between Seattle Time and GMT?
Right now GMT is 8 hours ahead of PST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Seattle Time in GMT?
9:00 AM PST is 5:00 PM GMT.
What is 12 PM (noon) Seattle Time in GMT?
12:00 PM PST is 8:00 PM GMT.
Is GMT ahead of or behind Seattle Time?
GMT is 8 hours ahead of PST, so it is later in GMT than in Seattle Time.
Does Seattle Time change for daylight saving time?
Yes. Seattle Time next changes on 14 Mar 2027, when clocks go forward one hour from PST to PDT.
Does GMT change for daylight saving time?
No. GMT stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Seattle Time and GMT?
Seattle Time and GMT have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM PST, which is 3:00 PM GMT.
Related conversions
Convert GMT to Seattle Time
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Learn more
Updated 7 November 2026. Time zone data: IANA tz database.