Day of the week: Difference between revisions

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End If
Return modulo(365 * y + Fix(y / 4) - Fix(y / 100) + Fix(y / 400) + d + Fix((153 * m + 8) / 5), 7) + 1
End Function </lang>
Dec 25, 2011
Dec 25, 2016
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Dec 25, 2112
Dec 25, 2118</lang>
 
=={{header|GAP}}==