Would you consider extending the selectors at some point to include these options?
Possibly [DDD] gives abbreviated Mon, Tue, Wed ... whilst [DDDD] gives Monday, Tuesday, Wednesday ...
Similarly, [MMM] gives Jan, Feb, Mar ... and [MMMM] gives January, February, March ...
Alternatives to fit the current language patterns could be [enDDD], [deDDD], [nlDDD] etc.
It would at least save me from writing the following to get the number for day of week to use in a conditional expression (Sunday is 0, Monday is 1 etc)

Code: Select all
{*([D] + (([M]<3) * floor(2.6*([M]+10) -0.2)) + (([M]>2) * floor(2.6*([M]-2) -0.2))+(([M]>3)*([YY] +floor([YY]/4) + floor([YYYY]/400) -2*[YYYY]/100))+(([M]<3)*([YY]-1 +floor(([YY]-1)/4) + floor([YYYY]/400) -2*[YYYY]/100)) ) % 7 *}