Guam to Seattle Time Difference
🇬🇺 Guam is currently 17 hours behind of 🇺🇸 Seattle. This difference varies between 18h and 17h due to Daylight Saving Time.
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Atin 🇬🇺 Guam→it will be—in 🇺🇸 Seattle
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Difference
-17h
Business overlap
2h
Distance
9,120 km
Approx. flight
10.7h
Hour-by-Hour: Guam to Seattle
| 🇬🇺 Guam | 🇺🇸 Seattle | Note |
|---|---|---|
| 12:00 AM | 7:00 AM | |
| 1:00 AM | 8:00 AM | |
| 2:00 AM | 9:00 AM | |
| 3:00 AM | 10:00 AM | |
| 4:00 AM | 11:00 AM | |
| 5:00 AM | 12:00 PM | |
| 6:00 AM | 1:00 PM | |
| 7:00 AM | 2:00 PM | |
| 8:00 AM | 3:00 PM | |
| 9:00 AM | 4:00 PM | |
| 10:00 AM | 5:00 PM | |
| 11:00 AM | 6:00 PM | |
| 12:00 PM | 7:00 PM | |
| 1:00 PM | 8:00 PM | |
| 2:00 PM | 9:00 PM | |
| 3:00 PM | 10:00 PM | |
| 4:00 PM | 11:00 PM | |
| 5:00 PM | 12:00 AM(next day) | Next day |
| 6:00 PM | 1:00 AM(next day) | Next day |
| 7:00 PM | 2:00 AM(next day) | Next day |
| 8:00 PM | 3:00 AM(next day) | Next day |
| 9:00 PM | 4:00 AM(next day) | Next day |
| 10:00 PM | 5:00 AM(next day) | Next day |
| 11:00 PM | 6:00 AM(next day) | Next day |
Daylight Saving Time (DST)
Seattle observes Daylight Saving Time, while Guam does not. This causes the time difference to shift between 18 hours behind and 17 hours behind depending on the season. Currently, Guam is 17 hours behind relative to Seattle.
Min difference
18h
Max difference
17h
Best Meeting Times
There are 2 overlapping business hours between Guam and Seattle (9 AM – 6 PM in each city).
🇬🇺 Guam
9:00 AM – 11:00 AM
🇺🇸 Seattle
4:00 PM – 6:00 PM
Frequently Asked Questions
What is the time difference between Guam and Seattle?
The time difference between Guam and Seattle is currently 17 hours behind. Guam uses GMT+10 (UTC+10), while Seattle uses PDT (UTC-7). This difference varies seasonally due to Daylight Saving Time, ranging from 18 hours behind to 17 hours behind.
When it's noon in Guam, what time is it in Seattle?
When it's 12:00 PM (noon) in Guam, it is 7:00 PM in Seattle. Use our calculator above to convert any other time.
Does the time difference between Guam and Seattle change?
Yes, the time difference changes throughout the year. Because Seattle observes Daylight Saving Time, the offset shifts between 18 hours behind and 17 hours behind at different times of the year.
What are the best times to schedule a call between Guam and Seattle?
The best time to call is between 9:00 AM and 11:00 AM in Guam (which is 4:00 PM – 6:00 PM in Seattle). This 2-hour window falls within business hours in both cities.
Is Guam ahead or behind Seattle?
Guam is currently 17 hours ahead of Seattle.
What time zone is Guam in?
Guam is in the Pacific/Guam time zone, currently using GMT+10 (UTC+10). Guam does not observe Daylight Saving Time.
What time is midnight in Guam in Seattle?
When it is midnight (12:00 AM) in Guam, it is 7:00 AM in Seattle.