Determination of the day of the week row C) to find the dominical letter that is E. The letter for September 18 is B, so the day of the week is Thursday. Use 16 (in the Julian century row, column E) and 76 (in row D) to find the dominical letter that is A. February 23 is a "D" day, so the day of the week is Wednesday. In a handwritten note in a collection of astronomical tables, Carl Friedrich Gauss described a method for calculating the day of the week for 1 January in any given year. He never published it. It was finally included in
Four-day week the state expected to save on operating costs such as electricity, heat, air conditioning, and gasoline for state-owned vehicles. Utah ended this practice however, in 2011, with the Utah Legislature overriding Governor Gary Herbert's veto of five-day work week legislation. Many local governments have had alternative schedules for many years. Public schools in Hawaii closed on 17 Fridays in 2010. Over 100 school districts in rural areas in the United States changed the school week to a four-day week; most also extended each school day by an hour or more. The changes were often made in order to save money