Regarding testing years 1 to 2500, I'm not sure it's absolutely necessary to go through that many iterations. There are only 14 possible calendars anyway: the year can start on one of seven weekdays, and it's either a leap year or it isn't. Seven times two is fourteen different calendars.
In reply to Re: How preparing the weekly shift roster led to a fascinating discovery...
by talexb
in thread How preparing the weekly shift roster led to a fascinating discovery...
by McDarren
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