"The Islamic calendar, which syncs against the moo...

2008-03-16T18:47:00.000-04:00

"The Islamic calendar, which syncs against the moon, needs to have years approximating 354.37 days per year. To do this, it inserts 11 leap years over a 30 year cycle."

The Islamic calendar does not insert any leap years. As a consequence the islamic months simply rotate through the solar calendar.

The Jewish and the Hindu calendar which are also lunar calendars do in fact insert leap months to synchronize the lunar calendar with a solar calendar.

Comments on research!rsc: Leaping Years and Drawing Lines

"The Islamic calendar, which syncs against the moo...