Chronos has:
"IslamicFatimidCalendar
Concept:
IslamicFatimidCalendar implements the Islamic Fatimid Calendar.
The
Islamic Fatimid Calendar (also called the Tabular Islamic Calendar) is an
arithmetical variation of the Astronomical Islamic Calendar (the one most
Muslims use for religious purposes.) It has the same year numbers and
months, but the months are determined by arithmetic rules rather than by
observation or astronomical calculations. It was developed by early Muslim
astronomers of the second Hijra century (the eighth century AD) to provide a
predictable time base for calculating the positions of the moon, sun, and
planets. Historians use it to convert an Islamic date into a Western
calendar date when no other information (like the day of the week) is
available. Some Muslims (e.g, the Daudi Bohras, the Isma'ilis) also use the
arithmetical calendar for regligous purposes [reference:
http://archive.mumineen.org/publications/oup/bohras.html]. All Muslims
commonly use it to estimate future (and sometimes past) dates."
Is that what you want?
Torsten Bergmann wrote
> Do we have support/code for that somewhere?
>
> Thx
> T.
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