WHAT THE LAW DOINCongress, in plain words

The law › Title 15, Commerce and Trade › Chapter 6

15 U.S.C. 261: Zones for standard time; interstate or foreign commerce

Created in 1966 by Public Law 89-387. Changed by 3 later laws. 1 bill in this Congress would change it.

This Congress

  • H.R. 139 Sunshine Protection Act of 2025 · passed house · would change the section as a whole

How it got here

2007

  • Pub. L. 110–69 designated existing provisions as subsec. (a), inserted heading, substituted second sentence for former second sentence which read as follows: "Except as provided in section 260a(a) of this title, the standard time of the first zone shall be based on the mean solar time of the sixtie… (America COMPETES Act" or the "America Creating Opportunities to Meaningfully Promote Excellence in Technology, Education, and Science Act) Law text

2000

  • Pub. L. 106–564, in first sentence, substituted "nine zones" for "eight zones" and, in second sentence, substituted "; that of the eighth" for "; and that of the eighth" and inserted before period at end "; and that of the ninth zone on the one hundred and fiftieth meridian of longitude east from G… Law text

1983

  • Pub. L. 97–449 substituted "Secretary of Transportation" for "Interstate Commerce Commission".

1966

  • Pub. L. 89–387 increased the number of time zones from five for the territory of continental United States to eight for the territory of the United States, inserted the "exception phrase", substituted "solar" for "astronomical" time, established the first zone on basis of the 60th degree of longitu…

Text, outline and history from the official U.S. Code (2024 edition) on GovInfo, published by the Office of the Law Revision Counsel. Changes made after that edition appear under This Congress.