Uniform Time Act - Non-observers

Non-observers

The most notable de facto exception is that Arizona and Hawaii have chosen not to use DST statewide. The U.S. territories of Puerto Rico and the Virgin Islands do not follow DST. The various Native American nations within the state have the right to use DST, or not use it, as they see fit. The Navajo Nation has chosen to use DST throughout its territory, which includes parts of Arizona, New Mexico, and Utah. If it did not, then the Navajo Nation would lack a uniform time during the Summer months. On the other hand, the Hopi Nation, whose territory is surrounded by that of the Navajo Nation, and is entirely within the boundaries of the State of Arizona, has chosen not to use DST.