Porto to Seattle time converter
Seattle is 8 hours behind Porto. When it is 9:00 AM in Porto, it is 1:00 AM in Seattle.
2:34 PM in Porto, Monday, October 19, 2026
Porto to Seattle conversion table
Every hour of today in Porto and the matching time in Seattle. Light rows are typical working hours (9:00–18:00).
| Porto | Seattle |
|---|---|
| 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 |
Best time to call or meet
Both sides are at work from 5:00 PM – 6:00 PM in Porto (9:00 AM – 10:00 AM in Seattle).
Daylight saving time and the difference
The difference changes during the year because Porto and Seattle switch clocks on different dates:
- Oct 19, 2026 – Oct 25, 2026: -8h
- Oct 25, 2026 – Nov 1, 2026: -7h
- Nov 1, 2026 – Mar 14, 2027: -8h
- Mar 14, 2027 – Mar 28, 2027: -7h
- Mar 28, 2027 – Oct 19, 2027: -8h
Distance
Porto and Seattle are 8,188 km (5,088 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Porto and Seattle?
Seattle is 8 hours behind Porto.
What time is it in Seattle when it is 9 AM in Porto?
When it is 9:00 AM in Porto, it is 1:00 AM in Seattle.
When is the best time to call Seattle from Porto?
Both sides are at work from 5:00 PM – 6:00 PM in Porto (9:00 AM – 10:00 AM in Seattle).
Does the time difference between Porto and Seattle change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.