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Time difference between Boston and Seattle

Seattle is 3 hours behind Boston.

Boston
United States · Eastern Daylight Time
3:41 AM
Wednesday, October 21, 2026
Seattle
United States · Pacific Daylight Time
12:41 AM
Wednesday, October 21, 2026
Compare more placesSeattle to Boston

Boston to Seattle time converter

Green rows are office hours in both places; light green rows are when both are awake.

BostonSeattle
12:00 AM9:00 PM (previous day)
1:00 AM10:00 PM (previous day)
2:00 AM11:00 PM (previous day)
3:00 AM12:00 AM
4:00 AM1:00 AM
5:00 AM2:00 AM
6:00 AM3:00 AM
7:00 AM4:00 AM
8:00 AM5:00 AM
9:00 AM6:00 AM
10:00 AM7:00 AM
11:00 AM8:00 AM
12:00 PM9:00 AM
1:00 PM10:00 AM
2:00 PM11:00 AM
3:00 PM12:00 PM
4:00 PM1:00 PM
5:00 PM2:00 PM
6:00 PM3:00 PM
7:00 PM4:00 PM
8:00 PM5:00 PM
9:00 PM6:00 PM
10:00 PM7:00 PM
11:00 PM8:00 PM

Questions

What is the time difference between Boston and Seattle?

Seattle is 3 hours behind Boston. Boston is on UTC−4 and Seattle is on UTC−7.

What time is it in Seattle when it is 9 AM in Boston?

When it is 9:00 AM in Boston, it is 6:00 AM in Seattle.

When is the best time to call Seattle from Boston?

The best time to call or meet is 12:00 PM–6:00 PM in Boston (9:00 AM–3:00 PM in Seattle), when both places are in normal office hours.

Does the time difference between Boston and Seattle change?

Yes. Because of daylight saving time, the difference changes on Sunday, November 1, 2026, when Seattle will be 2 hours behind Boston.

Boston is 3 hours ahead of Seattle. More: time in Boston · time in Seattle

Time difference from Boston to other cities

All Boston time differences →

Time difference from Seattle