Ultraviolet index. The ultraviolet index or UV Index is an international standard measurement of the strength of sunburn-producing ultraviolet (UV) radiation at a particular place and time. The scale was developed by Canadian scientists in 1992, then adopted and standardized by the UN's World Health Organization and World Meteorological Organization in 1994.
one-quarter-one of four equal parts; a quarter of a pound. fourth part, one-fourth, quarter, quartern, twenty-five percent, fourth. common fraction, simple fraction-the quotient of two integers.
Every calendar year is divided into the following four parts, known as quarters 1st Quarter: January 1 through March 31 2nd Quarter: April 1 through June 30 3rd Quarter: July 1 through September 30 4th Quarter: October 1 through December 31. The information on this page is meant to provide a general overview of the law. The laws in your state and/or city may deviate significantly from those described here.