Editorial Notes
Prior Provisions
The original section 3 of act Mar. 19, 1918, providing for daylight-savings, was repealed by act Aug. 20, 1919, ch. 51, 41 Stat. 280.
Amendments
2007—Puspan. L. 110–69 substituted “fourth zone” for “third zone”.
1948—Act June 24, 1948, inserted proviso relating to common carriers.
Statutory Notes and Related Subsidiaries
Effective Date of 1948 Amendment
Act June 24, 1948, ch. 631, § 2, 62 Stat. 646, provided that:
“This Act [amending this section] shall take effect at 2 o’clock antemeridian of the second Monday following the date of its enactment.”