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The Rata Die method works by adding up the number of days d that has passed since a date of known day of the week D. The day of-the-week is then given by (D + d) mod 7, conforming to whatever convention was used to encode D. For example, the date of 13 August 2009 is 733632 days from 1 January AD 1. Taking the number mod 7 yields 4, hence a ...
A precise date is specified by the ISO week-numbering year in the format YYYY, a week number in the format ww prefixed by the letter 'W', and the weekday number, a digit d from 1 through 7, beginning with Monday and ending with Sunday. For example, the Gregorian date Sunday, 29 December 2024 corresponds to day number 7 in the week number 52 of ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Calculating_the_day_of_the_week&oldid=473328703"
The leap year problem (also known as the leap year bug or the leap day bug) is a problem for both digital (computer-related) and non-digital documentation and data storage situations which results from errors in the calculation of which years are leap years, or from manipulating dates without regard to the difference between leap years and common years.
The day of the week can be easily calculated given a date's Julian day number (JD, i.e. the integer value at noon UT): Adding one to the remainder after dividing the Julian day number by seven (JD modulo 7 + 1) yields that date's ISO 8601 day of the week. For example, the Julian day number of 28 December 2024 is 2460673.
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Mashed potatoes are a popular Thanksgiving side dish but are they safe for your dogs to eat, too? Here's what a veterinarian says on the matter!
A declared mayoral candidate, city Comptroller Brad Lander, is asking US health officials to determine whether ex-Gov. Andrew Cuomo's controversial March 25, 2020 order requiring nursing homes to ...