A lunar year or Moon Calendar (Lunar calendar) is one that is based on the cycles of the moon phases . A lunar month lasts 29.53 days. So after 12 lunar months, you're about about 354 days. This is short of the 365 days that it takes the Earth to orbit the Sun.

Source : http://settingcomputers.blogspot.com/2014/09/moon-calendar-lunar-calendar.html

<a href="http://settingcomputers.blogspot.com/2014/09/moon-calendar-lunar-calendar.html" title="Moon Calendar">Moon Calendar</a>