Week Numbers

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Blitzer101

I also have a snippet somewhere calculating Easter day of any Gregorian year, do you need it ? (Made in BB3D, I think, but should be easy to convert)

That maybe useful at some point, but I'll leave it for now - I'd like to get the week number thing finished of 1st. Just had a go at it and pretty much got the code to determine the length fof the previous year with the help of your posting - thanks very much. :)

I need myself a function for moon-phases for Gregorian years but have not
managed to create anything viable yet, maybe you could help me with this one ?

I have to say that means nothing to me TBH, perhaps again it's something I can look into once I've done what I intend to with this date thing first?