The UTC offset in the list is not valid in practice during daylight saving time. Many countries have daylight saving time, one added hour during the local summer, but this list does not include that information. France, including its overseas territories, has the most time zones with 12 (13 including its claim in Antarctica). Time zones of a country include that of dependent territories (except Antarctic claims). Countries are ranked by total number of time zones on their territory. This is a list representing time zones by country. The vast majority of Mexico, however, still uses the old dates.See also: Daylight saving time by country In Mexico, beginning in 2010, the portion of the country in this time zone uses the extended dates, as do some other parts. The Canadian provinces and territories that use daylight time each adopted these dates between October 2005 and February 2007. 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. Through 2006, the local time (PST, UTC−08:00) changed to daylight time (PDT, UTC−07:00) 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.Įffective in the U.S. One state is split between the Pacific Time Zone (unofficially), the Alaska Time Zone, and the Hawaii–Aleutian Time Zone: Oregon – all, except for the majority of Malheur County.Nevada – all, except for West Wendover and, unofficially, several towns along the Idaho border.Three states are split between the Pacific Time Zone and the Mountain Time Zone: Two states are fully contained in the Pacific Time 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, two hours behind the Central Time Zone, three hours behind the Eastern Time Zone, and four hours behind the Atlantic Time Zone.
The largest city in the Pacific Time Zone is Los Angeles, whose metropolitan area is also the largest in the time zone. In Mexico, the corresponding time zone is known as the Zona Noroeste (Northwest Zone) and observes the same daylight saving schedule as the United States and Canada. 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 the United States and Canada, this time zone is generically called the Pacific Time Zone. During daylight saving time, a time offset of UTC−07:00 is used. Places in this zone observe standard time by subtracting eight hours from Coordinated Universal Time ( UTC−08:00). The Pacific Time Zone ( PT) is a time zone encompassing parts of western Canada, the western United States, and western Mexico. Also called Fall Back or switch to Winter Time. Clocks are turned backward 1 hour to Sunday, November 5, 2023, 1:00 am local standard time instead. Central Standard Time - is abbreviated as CST Central Daylight Time - is abbreviated as CDT UTC - GMT Offset. DST is observed throughout this time zone. DST ends annually the on first Sunday of November.
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