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 of the United States and Canada observe DST on the same dates. But of course, there are exceptions. Hawaii and Arizona are the two U.S. states that don't observe daylight saving time, though Navajo Nation, in northeastern Arizona, does follow DST, according to NASA.