Day of the week: Difference between revisions

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#See_also
(A task beginning with Y, and seasonal to boot!)
 
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'''In what years between 2008 and 2099 will the 25th of December be a Sunday?'''
 
Using any standard date handling libraries of your programming language; compare the dates calculated with the output of other languages to discover any anomalies in the handling of dates which may be due to, for example, overflow in types used to represent dates/times similar to [[http://en.wikipedia.org/wiki/Y2k#See_also y2k]] problems.
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