Fact 1117 — daylight saving time in the U.S.

Broadly yes, but Arizona is an exception only almost statewide: the Navajo Nation observes daylight saving time. Hawaii and the U.S. territories of American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands do not observe it. “Samoa” should be specified as American Samoa, and the original list of territories should be expanded. [1–2]