Portsmouth, NH to Seattle, WA: time difference
Seattle, WA is 3 h behind Portsmouth, NH. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Portsmouth, NH 04:15 4:15 AM Seattle, WA 01:15 1:15 AM You –:–
04:15 4:15 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 17:55
01:15 1:15 AM
Pacific Daylight Time · UTC-7
☀️ 07:35 · 🌙 18:15
·
−3 h
Seattle, WA is 3 h behind Portsmouth, NH.
When you, Portsmouth, NH and Seattle, WA are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Portsmouth, NH
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇺🇸 Seattle, WA
21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM
📍 Your time
- Asleep
- Early
- Working hours
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Time zones side by side
| Detail | 🇺🇸 Portsmouth, NH | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 04:15 | 01:15 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from Portsmouth, NH | — | −3 h |
| IANA zone | America/New York | America/Los Angeles |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:02 | 07:35 |
| Sunset | 17:55 | 18:15 |
| Daylight | 10 h 54 min | 10 h 41 min |
| People on this clock | 95,535 | 737,015 |
Compare Portsmouth, NH with another city
More comparisons with Portsmouth, NH: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Portsmouth, NH and Seattle, WA: common questions
How far behind Portsmouth, NH, is Seattle, WA?
Seattle is 3 hours behind Portsmouth: UTC−7 against UTC−4.
What time is it in Seattle, WA, when it is 9:00 AM in Portsmouth, NH?
When it is 9:00 AM in Portsmouth, it is 6:00 AM in Seattle.
If it is 6:00 PM in Portsmouth, NH, what time is it in Seattle, WA?
At 6:00 PM in Portsmouth, clocks in Seattle show 3:00 PM.
When is a good time to call Seattle, WA, from Portsmouth, NH?
Between 12:00 PM and 6:00 PM in Portsmouth – that is 9:00 AM to 3:00 PM in Seattle – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Portsmouth, NH, is it still yesterday in Seattle, WA?
Before 3:00 AM in Portsmouth, the date in Seattle has not changed yet. From 9:00 PM in Seattle, it is already the next day in Portsmouth.
Does the time difference between Portsmouth, NH, and Seattle, WA, change?
No. The clocks in Portsmouth and in Seattle change on the same dates, so the difference stays 3 hours.
