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.
While many states in the U.S. observe DST, there are still some exceptions. To this day, Arizona and Hawaii have opted against adopting daylight savings. And they're not the only ones. While most of North America and Europe observe DST, most of Africa and Asia do not.