Tilem (dark moon) is a ceremony dedicated for Dewa Surya (the god of sun). Hindu Balinese people praying at the village temple in the afternoon. Tilem is believed as a special day to purify inner self and to eliminate all impurities inside of human being. In general, Tilem ceremony is a regular monthly ritual as Tilem occurs once in a month when the earth position is in between the sun and the moon so we cannot see the moon over the sky