Central Time Zone

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Central Time Zone
Time zone
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  Central Standard Time
Note that most of Mexico abolished DST
UTC offset
CSTUTC−06:00
CDTUTC−05:00
Current time
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Observance of DST
DST is observed in some of this time zone.

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The Central Time Zone is a time zone in parts of Canada, the United States, Mexico, Central America, and a few Caribbean islands.[1] It is one hour behind the Eastern Time Zone.

Daylight saving time (DST) is observed in most parts of that zone (20 states in the US, three provinces or territories in Canada, and several border municipalities in Mexico): Central Standard Time (CST) is observed from the first Sunday in November to the second Sunday in March. It is six hours behind Coordinated Universal Time (UTC) and designated internationally as UTC−6.[2] From the second Sunday in March to the first Sunday in November, the same areas observe DST, creating the designation of Central Daylight Time (CDT), which is five hours behind UTC and known formally as UTC−5.[3]

Regions using Central Time (CT)

Canada

Script error: No such module "Labelled list hatnote". The province of Manitoba is the only province or territory in Canada that observes Central Time in all areas.

The following Canadian provinces and territories observe Central Time in the areas noted, while their other areas observe Eastern Time:

Also, most of the province of Saskatchewan is on Central Standard Time year-round, never adjusting for daylight saving time. One major exception includes Lloydminster, a city whose borders overlap both Alberta and Saskatchewan. The city charter[4] stipulates that it shall observe Mountain Time and DST, putting the community on the same time as all of Alberta (UTC−7) in the winter, and in time with Saskatchewan (UTC−6) during the summer.

United States

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Ten states are contained entirely in the Central Time Zone:

Five states are split between the Central Time Zone and the Mountain Time Zone:

Five states are split between the Central Time Zone and the Eastern Time Zone:

Additionally, Phenix City, Alabama, and several nearby communities in Russell County, Alabama, unofficially observe Eastern Time. This is due to their close proximity to Columbus, Georgia, which is on Eastern Time.[5]

Although legally located within the Central Time Zone, Kenton, Oklahoma—located to the adjacent east of the defined border of the Central and Mountain time zones (at the Oklahoma−New Mexico state line)—unofficially observes Mountain Time.[6] This is reportedly because most people who interact with the town reside in either New Mexico or Colorado.[6][7]

Mexico

Script error: No such module "Labelled list hatnote". Most of Mexico—roughly the eastern three-fourths—lies in the Central Time Zone, except for five northwestern states (Baja California, Baja California Sur, Sinaloa, Sonora, and most of Nayarit) and one southeastern state (Quintana Roo). It is known locally as the Zona Centro.[8]

The federal entities of Mexico that observe Central Time:

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Central America

Out of the seven countries comprising Central America, all but one use Central Standard Time year-round:

Panama, which recognizes Eastern Standard Time (UTC−5) year round, is the exception.[10]

Central Daylight Time

Lua error in package.lua at line 80: module 'Module:Hatnote list' not found. Daylight saving time (DST) is in effect in much of the Central time zone between mid-March and early November. The modified time is called "Central Daylight Time" (CDT) and is UTC−05:00.[11]

In the United States, all time zones that observe DST were effectively changed by the Energy Policy Act of 2005. Beginning in 2007, DST would now begin at 2 a.m. (02:00) on the second Sunday in March instead of the first Sunday in April, moving the time from 2 to 3 a.m. (i.e., from 02:00 to 03:00). Additionally, DST would end at 2 a.m. (02:00) on the first Sunday in November instead of the last Sunday in October, moving the time from 2 to 1 a.m. (i.e., from 02:00 to 01:00).[citation needed]

At the time, Mexico decided not to go along with this change and observed their horario de verano ("summer schedule") from the first Sunday in April to the last Sunday in October. In December 2009, the Mexican Congress allowed ten border cities, eight of which are in states that observe Central Time, to adopt the US daylight time schedule effective in 2010. In October 2022, however, CDT was used in Mexico for the last time after DST was abolished. The US is also seeing traction in the same direction, with the Sunshine Protection Act that proposes legislation that would permanently end the switching of times and make daylight saving time permanent.[12]

Alphabetical list of major Central Time Zone metropolitan areas

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See also

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."Central Time – CT Time Zone". timeanddate.com. Retrieved November 22, 2023.
  2. ^ Page Module:Citation/CS1/styles.css has no content."History of Time Zones and Daylight Saving Time (DST)". United States Department of Transportation Bureau of Transportation Statistics. January 17, 2023. Retrieved December 28, 2023.
  3. ^ Page Module:Citation/CS1/styles.css has no content."Central Time (CST/CDT) | GMT". greenwichmeantime.com. Retrieved May 22, 2020.
  4. ^ The Lloydminster Charter. lloydminster.ca
  5. ^ Page Module:Citation/CS1/styles.css has no content."Parts of Eastern Alabama split between 2 time zones". Archived from the original on March 10, 2016. Retrieved March 22, 2009.
  6. ^ a b Page Module:Citation/CS1/styles.css has no content.Young, Norma Gene. "Cimarron County". Encyclopedia of Oklahoma History and Culture. Oklahoma Historical Society. Retrieved June 30, 2015.
  7. ^ Page Module:Citation/CS1/styles.css has no content.Bright, Sheilah (September 12, 2012). "The Last of Kenton". This Land Press. Archived from the original on September 27, 2020. Retrieved September 9, 2020.
  8. ^ Page Module:Citation/CS1/styles.css has no content."Ley de los husos horarios en los Estados Unidos Mexicanos" (PDF) (in español). Chamber of Deputies of Mexico. November 2, 2022.
  9. ^ Page Module:Citation/CS1/styles.css has no content."Leyes Bibliography" (PDF). Archived from the original (PDF) on November 2, 2022. Retrieved November 8, 2022.
  10. ^ a b Page Module:Citation/CS1/styles.css has no content."Panama", The World Factbook, Central Intelligence Agency, November 14, 2023, archived from the original on November 13, 2023, retrieved November 22, 2023
  11. ^ Page Module:Citation/CS1/styles.css has no content."Central Daylight Time – CDT Time Zone". www.timeanddate.com. May 23, 2026. Retrieved May 23, 2026.
  12. ^ Page Module:Citation/CS1/styles.css has no content."S.623 - Sunshine Protection Act of 2021". US Congress. March 16, 2022.

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Time zone Hours from UTC: Standard time Hours from UTC: Daylight saving time
Hawaii–Aleutian (in Hawaii) −10 −10
Hawaii–Aleutian (parts of Alaska) −10 −9
Alaska (most of Alaska) −9 −8
Pacific (US and Mexico) −8 −7
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 −7 −7
Mountain (other states/provinces) −7 −6
Saskatchewan −6 −6
Central (other states/provinces) −6 −5
Eastern (parts of Nunavut, Ontario, and the Caribbean) −5 −5
Eastern (other states/provinces) −5 −4
Atlantic (Natashquan River) −4 −4
Atlantic (other provinces) −4 −3
Newfoundland −3:30 −2:30
Saint Pierre and Miquelon −3 −2
Most of Greenland −2 −1

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