General Mathematics


Predicting Day of Christmas Day

Authors: Dave Ryan T. Cariño

This study is an algorithm of predicting the day of Christmas Day for any given year in Gregorian & Julian calendar using simplified formula. It consists of five algebraic (2 for Julian) expression, three of which are integer function by substituting the year. This formula will calculate the modulo 7 which gives a number from 0 to 6, i.e., 0=Saturday, 1=Sunday, and so on, that determines the exact day of Christmas. This algorithm has no condition even during leap-year and 400-year cycle.

Comments: 3 Pages.

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Submission history

[v1] 2018-01-21 23:20:12

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