[Development] Calendar Systems proposal

[Kevin Kofler]

Edward Welbourne wrote:

> Soroush Rabiei
>> 3. Number of months in all years are fixed.
> 
> Is there no lunar calendar with occasional extra months ?

Of course there is. Any lunar calendar adjusted for consistency with the 
solar year necessarily has occasional intercalar months. The Jewish calendar 
is the most prominent example. (The Islamic calendar, on the other hand, is 
the most prominent example of a lunar calendar that is NOT adjusted for the 
solar year, which explains why e.g. Ramadan rotates all over the solar year 
over the years.)

        Kevin Kofler