The Info List - Pacific Daylight Time

The Pacific Time Zone
Pacific Time Zone
(PT) is a time zone encompassing parts of western Canada, the western United States, and western Mexico. Places in this zone observe standard time by subtracting eight hours from Coordinated Universal Time
Coordinated Universal Time
(UTC−8). During daylight saving time, a time offset of UTC−7
is used. In the United States and Canada, this time zone is generically called the "Pacific Time Zone". Specifically, time in this zone is referred to as "Pacific Standard Time" (PST) when standard time is being observed (early November to mid-March), and "Pacific Daylight Time" (PDT) when daylight saving time (mid-March to early November) is being observed. In Mexico, the corresponding time zone is known as the Zona Noroeste (Northwest Zone) and observes the same daylight saving schedule as the U.S. and Canada. The largest city in the Pacific Time Zone is Los Angeles; the city's metropolitan area is the largest in the zone. The zone is two hours ahead of the Hawaii–Aleutian Time Zone, one hour ahead of the Alaska
Time Zone, one hour behind the Mountain Time Zone,[nb 1] two hours behind the Central Time Zone, and three hours behind the Eastern Time Zone.


1 Canada 2 Mexico 3 United States 4 Daylight time 5 See also 6 Notes 7 External links

Canada[edit] Main article: Time in Canada Only one Canadian territory is entirely in the Pacific Time Zone:


One Canadian province and one territory are split between the Pacific Time Zone and the Mountain Time Zone:

British Columbia
British Columbia
– all, except for the Highway 95 corridor (including Golden and Creston) in the southeast, and Tumbler Ridge, Fort St. John, and Dawson Creek
Dawson Creek
in the northeast Northwest Territories
Northwest Territories
– Tungsten

Mexico[edit] Main article: Time in Mexico In Mexico, the Zona Noroeste, which corresponds to Pacific Time in the United States and Canada, includes:

Baja California Colima
– Clarion Island

United States[edit] Main article: Time in the United States Two states are fully contained in the Pacific Time Zone:

California Washington

Three states are split between the Pacific Time Zone
Pacific Time Zone
and the Mountain Time Zone:

Panhandle Nevada
– all, except for West Wendover and Jackpot, Mountain City, Owyhee, and Jarbidge. Oregon
– all, except for the majority of Malheur County

One state is split between the Pacific Time Zone
Pacific Time Zone
and the Alaska
Time Zone:

– Hyder

Daylight time[edit] Through 2006, the local time (PST, UTC−8) changed to daylight time (PDT, UTC−7) at 02:00 LST (local standard time) to 03:00 LDT (local daylight time) on the first Sunday in April, and returned at 02:00 LDT to 01:00 LST on the last Sunday in October. Effective in the U.S. in 2007 as a result of the Energy Policy Act of 2005, the local time changes from PST to PDT at 02:00 LST to 03:00 LDT on the second Sunday in March and the time returns at 02:00 LDT to 01:00 LST on the first Sunday in November. The Canadian provinces and territories that use daylight time each adopted these dates between October 2005 and February 2007. In Mexico, beginning in 2010, the portion of the country in this time zone uses the extended dates, as do some other parts. The vast majority of Mexico, however, still uses the old dates. See also[edit]

Effects of time zones on North American broadcasting


^ Most of Arizona uses standard time year-round, so during daylight saving time, the Pacific Time Zone
Pacific Time Zone
is actually on the same time as most of Arizona.

External links[edit]

The Official NIST US Time Official times across Canada World time zone map U.S. time zone map History of U.S. time zones and UTC conversion Canada time zone map Time zones for major world cities

v t e

Time zones in North America

Time zone Hours from UTC: Standard time Hours from UTC: Daylight saving time

Hawaii–Aleutian (in Hawaii) –10 –10

Hawaii–Aleutian (in Alaska) –10 –9

Alaska –9 –8

Pacific –8 –7

Mountain (Arizona and Sonora only) –7 –7

Mountain (other states/provinces) –7 –6

Central (Saskatchewan only) –6 –6

Central (other states/provinces) –6 –5

Eastern (parts of Nunavut and the Caribbean) –5 –5

Eastern (other states/provinces) –5 –4

Atlantic (Natashquan River) –4 –4

Atlantic (other states/provinces) –4 –3

Newfoundland –3:30 –2:30

Saint Pierre and Miquelon and most of Greenland –3 –2

See also Time in Canada Time in Denmark Time in Mexico Time in the U