The Islamic calendar, also known as the Hijri, Lunar Hijri, Muslim, 0r Arabic calendar, is a lunar calendar consisting of 12 lunar months in a year. The following Islamic Monthly Prayer and Iqamah calendars are available to download and/or printable. The Islamic Prayer calendar is by Islamic months. You will need the PDF Reader to open the Calendar(s). Please adobe link at the bottom of the page to download the adobe pdf reader.