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Pacific Daylight Time (PDT)

Also known as: Pacific Time (PT) and Pacific Standard Time (PST)

Time zone map of PDT
Currently observing PDT.
Areas with same time currently (UTC -7).
Currently observing PDT – Pacific Daylight Time.
Currently has same time zone offset as PDT (UTC -7) but different time zone name.

Pacific Daylight Time (PDT) is 7 hours behind Coordinated Universal Time (UTC). This time zone is a Daylight Saving Time time zone and is used in: North America.

See full time zone map

What Is Pacific Daylight Time?

Pacific Daylight Time is the westernmost time zone in the contiguous United States and Canada. It is also used in Baja California, Mexico.

It covers all or parts of five states in the US and two provinces or territories in Canada.

The PDT time zone is the third most populated time zone in the US. It spans from Canada to Mexico.

In North America, Pacific Daylight Time shares a border with Mountain Standard Time (MST) in the east.


Pacific Daylight Time (PDT) is a North American time zone in use from the second Sunday in March to the first Sunday in November during Daylight Saving Time (DST). Pacific Standard Time (PST) is used during the remainder of the year.

PDT is the Pacific Time Zone

In everyday usage, PDT is often referred to as Pacific Time (PT) or the Pacific Time Zone. This can add a bit of confusion as the term Pacific Time does not differentiate between standard time and Daylight Saving Time, so Pacific Time switches between PDT and PST in areas that use DST during part of the year.

Most North American time zones also have generic terms, including Mountain Time (MT), Central Time (CT), Eastern Time (ET), and Atlantic Time (AT).

Converting Pacific Daylight Time to Other US Time Zones

Where and When is PDT Observed?

North America

U.S. states using PDT in the summer and PST in the winter:

Canadian provinces/territories using PDT in the summer and PST in the winter:

Mexican states using PDT in the summer and PST in the winter:

Other Time Zones in UTC -7

Some time zones exist that have the same offset as PDT, but can be found under a different name: