Title 15 › CHAPTER 6 — WEIGHTS AND MEASURES AND STANDARD TIME › SUBCHAPTER IX — STANDARD TIME › § 265
The Panhandle and Plains parts of Texas and Oklahoma are placed in the U.S. Central Time Zone. The Secretary of Transportation must set the western boundary for Central Time in those states: where the line crosses the Kansas–Oklahoma border, west to Oklahoma’s northwest corner, then south along Oklahoma’s and Texas’s western borders to New Mexico, then west to the Rio Grande and down the river to the U.S.–Mexico border. Named railroads get specific clock-change towns: the two Rock Island lines may use Tucumcari, Colorado Southern and Fort Worth & Denver City may use Sixela, Santa Fe lines may use Clovis, and lines into or through El Paso may use El Paso. Except for these choices, the Secretary’s authority to adjust time zones stays the same.
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Commerce and Trade, Source: USLM XML via OLRC
Legislative History
Reference
Citation
15 U.S.C. § 265
Title 15, Commerce and Trade
Last Updated
Aug 21, 2026
Release point: 119-102