Time in Texas

Most of Texas is in the Central Time Zone with the exception being the two westernmost counties.

Northwestern Culberson County near Guadalupe Mountains National Park unofficially observes Mountain Time Zone.^[1]

IANA time zone database

The 2 zones for Texas as given by zone.tab of the IANA time zone database. Columns marked * are from the zone.tab.

c.c.*	coordinates*	TZ*	comments*	UTC offset	UTC offset DST	Note
US	+415100−0873900	America/Chicago	Central (most areas)	−06:00	−05:00
US	+394421−1045903	America/Denver	Mountain (most areas)	−07:00	−06:00

Historical

The "Panhandle and Plains" section of Texas is now in the Central Time Zone, but had a two-year period of being in the Mountain Time Zone between 1919 and 1921.^[2]

References

^ "What Time Is It? (U.S. National Park Service)". www.nps.gov. Retrieved 2022-04-22.
^ A posting to the tzdata-history mailing list provides original documents: http://groups.google.com/group/tzdata-history/browse_thread/thread/5e0d0d24ba438e4c In short: A US government decision in March 1918 announced a change in time zone boundaries. The CT/MT boundary was to run through Texas roughly along the meridian 100w, with a bulge to the west around the towns of Sweatwater, Big Springs and San Angelo, starting January 1, 1919 at 2 am. The local Panhandle and Plains chamber of commerce was not happy in 1919 to be in another time zone than the more populated south-east of the state, and they petitioned a change. A US Congress decision of March 4, 1921, became part of the United States Code as section 265 and moved the Panhandle and Plains area back to CT.

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[1] "What Time Is It? (U.S. National Park Service)". www.nps.gov. Retrieved 2022-04-22.

[2] A posting to the tzdata-history mailing list provides original documents: http://groups.google.com/group/tzdata-history/browse_thread/thread/5e0d0d24ba438e4c In short: A US government decision in March 1918 announced a change in time zone boundaries. The CT/MT boundary was to run through Texas roughly along the meridian 100w, with a bulge to the west around the towns of Sweatwater, Big Springs and San Angelo, starting January 1, 1919 at 2 am. The local Panhandle and Plains chamber of commerce was not happy in 1919 to be in another time zone than the more populated south-east of the state, and they petitioned a change. A US Congress decision of March 4, 1921, became part of the United States Code as section 265 and moved the Panhandle and Plains area back to CT.

[1]

[2]

v t e Time in the United States
States	Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming
Federal district	Washington, D.C.
Territories	American Samoa Guam Northern Mariana Islands Puerto Rico U.S. Virgin Islands
Legislation	Standard Time Act of 1918 Uniform Time Act of 1966 Emergency Daylight Saving Time Energy Conservation Act (1974) Energy Policy Act of 2005 Sunshine Protection Act
Daylight saving time History Permanent time observation

IANA time zone database

Historical

See also

References