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.
Report Abuse. Nope! Hawaii doesn't need daylight savings time. The length of daylight in Hawaii ranges from about 13 hours in summertime to about 11 hours in winter. In other words, the sun sets only about an hour earlier in the peak of winter than it does at the peak of summer, and rises about an hour later.