Sasih is one of the elements in Bali Calendar which use moon rotation cycle as calculation. Sasih literally means month. 1 sasih is about 29 – 30 days. Purnama (full moon) and Tilem (dark moon) are the important days in Bali Calendar. There is ceremony on purnama and tilem. Please check about purnama and tilem ceremony.
Here is the Names of 12 Sasih in Bali Calendar :