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.
Today, daylight saving time is observed by all U.S. states except Arizona and Hawaii. Because the Grand Canyon State gets enough daylight and high temperatures anyway, Arizona does not observe daylight saving time, according to 9 News.