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Daylight saving time (DST) [edit] Main article: Daylight saving time in the United States. Daylight saving time (DST) begins on the second Sunday of March and ends on the first Sunday of November. Clocks are set ahead one hour at 2:00 a.m. on the following start dates and set back one hour at 2:00 a.m. on the corresponding end dates:
The Eastern Time Zone ( ET) is a time zone encompassing part or all of 23 states in the eastern part of the United States, parts of eastern Canada, and the state of Quintana Roo in Mexico . Places that use: Eastern Standard Time ( EST ), when observing standard time (autumn/winter), are five hours behind Coordinated Universal Time ( UTC−05:00 ...
Further reading. List of tz database time zones. The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [ 1 ] This is a list of time zones from release 2024a of the tz database. [ 2 ]
The evolution of United States standard time zone boundaries from 1919 to 2024 in five-year increments. Plaque in Chicago marking the creation of the four time zones of the continental US in 1883 Colorized 1913 time zone map of the United States, showing boundaries very different from today Map of U.S. time zones during between April 2, 2006, and March 11, 2007.
Yes. Central Standard Time ( Phenix City observes Eastern time on a de facto basis) Alaska. UTC−09:00 AKT. Yes. Most of state: UTC−09:00 AKST Alaska Standard Time. UTC−10:00 HT. Aleutian Islands (west of 169°30' W): UTC−10:00 HST Hawaii-Aleutian Standard Time. American Samoa.
The North American Central Time Zone (CT) [1] is a time zone in parts of Canada, the United States, Mexico, Central America and some Caribbean islands.. In parts of that zone (20 states in the US, three provinces or territories in Canada, and several border municipalities in Mexico), the Central Time Zone is affected by two time designations yearly: Central Standard Time (CST) is observed from ...
Each time zone is defined by a standard offset from Coordinated Universal Time(UTC). The offsets range from UTC−12:00to UTC+14:00, and are usually a whole number of hours, but a few zones are offset by an additional 30 or 45 minutes, such as in Indiaand Nepal.
Location of the state of Indiana in the United States, highlighted in red.. The U.S. state of Indiana is divided into Eastern and Central time zones.The official dividing line has generally moved progressively west from its original location on the Indiana–Ohio border, to a position dividing Indiana down the middle, and finally to its current location along much of the Indiana–Illinois border.