---
kind: "unit"
title: "15"
title_heading: "Commerce and Trade"
key: "ch6/schIX"
level: "subchapter"
label: "Subchapter IX"
heading: "Standard Time"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/15/ch6-schIX"
sections_count: 9
---

# Subchapter IX — Standard Time

Title 15 — Commerce and Trade › Chapter 6 — Weights and Measures and Standard Time

## Sections

- [§260. Congressional declaration of policy; adoption and observance of uniform standard of time; authority of Secretary of Transportation](/usc/15/260.md)
- [§260a. Advancement of time or changeover dates](/usc/15/260a.md)
- [§261. Zones for standard time; interstate or foreign commerce](/usc/15/261.md)
- [§262. Duty to observe standard time of zones](/usc/15/262.md)
- [§263. Designation of zone standard times](/usc/15/263.md)
- [§264. Part of Idaho in fourth zone](/usc/15/264.md)
- [§265. Transfer of certain territory to standard central-time zone](/usc/15/265.md)
- [§266. Applicability of administrative procedure provisions](/usc/15/266.md)
- [§267. “State” defined](/usc/15/267.md)