Converting dates with CultureAndRegionInfoBuilder ?

[bihoode]

Hi,
the built-in CultureInfo in .NET 2.0 can convert calendar dates
between cultures
for instance this code shows current time in hijri calendar
(arabic culture) :

CultureInfo pcul = new CultureInfo("ar-SA");
MessageBox.Show(DateTime.Now.ToString("F", pcul));

it seems that MIcrosoft has not developed this feature for all
CultureInfos
for example :

CultureInfo pcul = new CultureInfo("fa-IR");
MessageBox.Show(DateTime.Now.ToString("F", pcul));

must return the current date in persian calendar (jalali date) but
it retrurns the
Georgian calendar date time.
is there anyway to override this routines in .NET 2.0 ? (it was
possible in .NET 1.1)

I found CultureAndRegionInfoBuilder class to build new cultures but
I found nothing
about date conversion routines.

Thanks,
Mehdy Mohajery
mehdy[@]zworg.com