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.
Most areas of the United States currently observe daylight saving time (DST), the exceptions being Arizona (except for the Navajo Nation, which does observe daylight saving time), Hawaii, and the overseas territories of American Samoa, Guam, the Northern Mariana Islands, Puerto Rico and the United States Virgin Islands.