Boston vs Seattle time difference
Seattle is 3 h behind
Boston 23:05 · Seattle 20:05. From November 1 Seattle will be 2 h behind.
Boston now
Friday, October 16UTC-4, EDT
Seattle now
Friday, October 16UTC-7, PDT
Convert a time
Using today's difference: 3 h. From November 1: 2 h.
When the difference changes
-
1Nov 2026
Boston moves its clocks one hour back in 16 days
The difference becomes 2 h: Seattle behind
-
1Nov 2026
Seattle moves its clocks one hour back
The difference becomes 3 h: Seattle behind
-
14Mar 2027
Boston moves its clocks one hour forward
The difference becomes 4 h: Seattle behind
-
14Mar 2027
Seattle moves its clocks one hour forward
The difference becomes 3 h: Seattle behind
-
7Nov 2027
Boston moves its clocks one hour back
The difference becomes 2 h: Seattle behind
-
7Nov 2027
Seattle moves its clocks one hour back
The difference becomes 3 h: Seattle behind
Both cities change their clocks, on different dates.