The sixth zone, the Alaska standard time zone, includes the entire State of Alaska, except as provided in § 71.12 of this title.
49 C.F.R. §71.11
(Act of March 19, 1918, as amended by the Uniform Time Act of 1966 and Pub. L. 97-449, 15 U.S.C. 260 - 264 ; 49 CFR 1.59(a) ).