Graphite is an interesting material, an allotrope of carbon (as is diamond). It displays properties of both metals, and nonmetals. However, like a metal, graphite is a very good conductor of electricity due to the mobility of the electrons in its outer valence shells.
Arizona, Hawaii, American Samoa, Puerto Rico and the Virgin Islands donât participate in daylight saving. Indiana used to be split, but opted for daylight saving in 2005.
Arizona's time zone situation may be the most interesting in the entire United States, but there are other states/U.S. territories that don't follow the rules; Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands all choose not to observe Daylight Saving Time.