Diamond professionals use the grading system developed by GIA in the 1950s, which established the use of four important factors to describe and classify diamonds: Clarity, Color, Cut, and Carat Weight. These are known as the Four C s. When used together, they describe the quality of a finished diamond.
0. Most Americans adjust their clocks for Daylight Saving Time (DST) once in the spring and once in the fall -- but residents of two states, Hawaii and Arizona, have chosen not to observe it. This clocks stands in a city park in Glendale, Arizona. Wikimedia Commons. Arizona participated for one summer.
And the closer you areâ¦ to the equator, the shorter the days are in summer (although they will be longer in winter). Secondly, Hawaii does not observe daylight savings time. This means that it will get darker an hour earlier local time than it would in a place of similar latitude that does observe daylight savings time.