Boston, MA to Seattle, WA: time difference
Seattle, WA is 3 h behind Boston, MA. 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.
Boston, MA 08:26 8:26 AM Seattle, WA 05:26 5:26 AM You –:–
08:26 8:26 AM
Eastern Daylight Time · UTC-4
☀️ 06:52 · 🌙 18:12
05:26 5:26 AM
Pacific Daylight Time · UTC-7
☀️ 07:22 · 🌙 18:32
·
−3 h
Seattle, WA is 3 h behind Boston, MA.
When you, Boston, MA 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
🇺🇸 Boston, MA
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
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Boston, MA | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 08:26 | 05:26 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Eastern Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from Boston, MA | — | −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 | 06:52 | 07:22 |
| Sunset | 18:12 | 18:32 |
| Daylight | 11 h 20 min | 11 h 11 min |
| People on this clock | 675,647 | 737,015 |
Compare Boston, MA with another city
More comparisons with Boston, MA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Boston, MA and Seattle, WA: common questions
What is the time difference between Boston, MA, and Seattle, WA?
Seattle is 3 hours behind: it uses UTC−7, while Boston is on UTC−4.
If it is 9:00 AM in Boston, MA, what time is it in Seattle, WA?
At 9:00 AM in Boston, clocks in Seattle show 6:00 AM.
What time is it in Seattle, WA, at the end of the working day in Boston, MA?
The working day in Boston ends at 6:00 PM; in Seattle it is 3:00 PM at that moment.
When is a good time to call Seattle, WA, from Boston, MA?
Between 12:00 PM and 6:00 PM in Boston – 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 Boston, MA, is it still yesterday in Seattle, WA?
Before 3:00 AM in Boston, the date in Seattle has not changed yet. From 9:00 PM in Seattle, it is already the next day in Boston.
Does the time difference between Boston, MA, and Seattle, WA, change?
No. The clocks in Boston and in Seattle change on the same dates, so the difference stays 3 hours.
