[Tagging] Opening hours syntax for non Gregorian calendar

[Simon Poole]

Am 18.05.2019 um 15:28 schrieb Paul Allen:
> ...
> Can we just ignore the problem?  For Easter, maybe.  Data consumers
> could build in
> country-specific rules defining if Easter is Orthodox or Catholic. 
> Along with astronomical
> calculations, that would allow an app to say "This office in a
> different country from you is
> closed because it follows a different definition of Easter from your
> location."  Not so easy
> for Ramadan defined by visual observation.
> ...

Evaluation of opening hours values already depends on location and lots
of configuration for the PH tag (and in principle for the SH one too).
So this wouldn't be introducing anything new. See
https://github.com/opening-hours/opening_hours.js#holidays

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