Determination of the day of the week ISO 8601. The day designated with 7 may also be counted as "0", by applying the arithmetic modulo 7, which calculates the remainder of a number after division by 7. Thus, the number 7 is treated as 0, 8 as 1, 9 as 2, 18 as 4 and so on. If Sunday is counted as day 1, then 7 days later (i.e. day 8) is also a Sunday, and day 18 is the same as day 4, which is a Wednesday since this falls three days after Sunday. The basic approach of nearly all of the methods to calculate the
Hit of the Week Records Hit of the Week Records Hit of the Week was an American record label founded in 1930 that sold low-priced records made of Durium instead of the usual shellac. Around 1930, several types of thin, flexible records made of various plastic formulations were introduced in Europe, such as the German Phonycord, French Pathé Cellodisc, British Filmophone and Goodson, and Spanish Delfos records. In the US, this short-lived trend was represented by Hit of the Week records, which were made of a sturdy brown paper base coated with Durium, a lightweight synthetic resin. Apart from a tendency to low-frequency rumble due