› added 4 years ago
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TIL the Doomsday rule is an algorithm to find the day of the week for a given date. It takes advantage of each year having a certain day, called the doomsday, upon which certain dates fall; e.g, 4/4, 6/6, 8/8, 10/10, 12/12, & last day of Feb all occur on the same day of the week in any year