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
Outfit of the day are known as "outfit(s) of the week" (OOTW), where the blogger will display what they plan to wear during a whole week (or several days). Outfit of the day An outfit of the day (commonly abbreviated OOTD) is where fashion bloggers show what clothes (or outfits) they wear on a particular day or occasion. These are often found on social media websites, such as Tumblr, Instagram, and Pinterest, as well as various videos on YouTube. Mostly used by a younger female demographic, one example of a typical current outfit of the day would be a top from Forever 21, low