We use cookies to enhance your experience on our website. By continuing to use our website, you are agreeing to our use of cookies. You can change your cookie settings at any time. Find out more

Subscriber login

Library card login

Other

X Close menu

Dictionary Language resources

Pacific time

Definition of Pacific time

noun

[mass noun]

the standard time in a zone including the Pacific coastal region of Canada and the US, specifically:
- (Pacific Standard Time, abbreviation: PST) standard time based on the mean solar time at longitude 120° W, eight hours behind GMT. (Pacific Daylight Time, abbreviation: PDT) Pacific time during daylight saving, seven hours behind GMT.