calendar-islamic-mark-date-pattern

calendar-islamic-mark-date-pattern is an autoloaded Lisp function in `cal-islam.el'.

(calendar-islamic-mark-date-pattern MONTH DAY YEAR &optional COLOR)

Mark dates in calendar window that conform to Islamic date MONTH/DAY/YEAR.
A value of 0 in any position is a wildcard. Optional argument COLOR is
passed to `calendar-mark-visible-date' as MARK.