Hello Eugene, Joshua && list,
 
The calendar that is used today has 30, 31 and 29
days. I picked Date::Jalali since it was called Jalali
in the original algorithm and documents. 

Iran uses a calendar of its own which is slightly more
exact than the Gregorian calendar. The present Iranian
calendar, also called the Jalali calendar, dates back
to the eleventh century, when Jalal-ed-din Malek Shah
Seljuq commissioned a panel of scientists in 1074-1079
AD to create a calendar more accurate than those in
use at the time. (more on the calculation at
http://scienceworld.wolfram.com/astronomy/IranianCalendar.html)

I would suggest registering DateTime::Calendar::Jalali
for now. We can always mention that it's also called
Persian according to such and such documents.


_Ahmad

--- Eugene van der Pijll <[EMAIL PROTECTED]> wrote:
> Joshua Hoblitt schreef:
> > > It looks like the Jalali calendar is also called
> the Persian calendar,
> > > so DateTime::Calendar::Persian is a possibility
> too. I'm not familiar
> > > with this calendar, its most common name, and
> the way it is used, so you
> > > (Ahmad) should judge for yourself what name
> would be best.
> > 
> > In Calendrical Calculations it says the Jalali
> calendar used 30 day
> > months while the Persian calendar used 29,30, and
> 31 day months.
> 
> According to
> http://www.projectpluto.com/calendar.htm#jalali ,
> the
> Jalali calendar uses 31, 30 and 29 days. There are
> probably several
> versions of the Persian calendar, some, all or none
> of which are called
> the Jalali calendar...
> 
> That's why I can't tell what the correct name would
> be for this
> calendar, (and why you can't either, I presume).
> Ahmad is hopefully more
> familiar with how the calendar is used today.
> 
> Eugene


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